Home / 1,119,747,207.40-1,679,620,811.10-546,438,279.40

Finding the Fourth Proportional to 1,119,747,207.40, 1,679,620,811.10 and 546,438,279.40

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Solution

The fourth proportional to 1,119,747,207.40, 1,679,620,811.10 and 546,438,279.40 is: 819,657,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,747,207.40 : 1,679,620,811.10 = 546,438,279.40 : x
  2. Step 2: Convert to fraction form
    1,119,747,207.40/1,679,620,811.10 = 546,438,279.40/x
  3. Step 3: Cross multiply
    1,119,747,207.40x = 1,679,620,811.10 × 546,438,279.40
  4. Step 4: Simplify right side
    1,119,747,207.40x = 917,809,106,061,916,288
  5. Step 5: Solve for x
    x = 917,809,106,061,916,288/1,119,747,207.40
  6. Step 6: Final answer
    x = 819,657,419.10

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Half scale
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Double scale
Find fourth proportional to 1,119,747,208.40, 1,679,620,812.60 and 546,438,280.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.