Home / 1,078,272,823.80-1,617,409,235.70-432,504,017.40

Finding the Fourth Proportional to 1,078,272,823.80, 1,617,409,235.70 and 432,504,017.40

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Solution

The fourth proportional to 1,078,272,823.80, 1,617,409,235.70 and 432,504,017.40 is: 648,756,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,272,823.80 : 1,617,409,235.70 = 432,504,017.40 : x
  2. Step 2: Convert to fraction form
    1,078,272,823.80/1,617,409,235.70 = 432,504,017.40/x
  3. Step 3: Cross multiply
    1,078,272,823.80x = 1,617,409,235.70 × 432,504,017.40
  4. Step 4: Simplify right side
    1,078,272,823.80x = 699,535,992,220,113,536
  5. Step 5: Solve for x
    x = 699,535,992,220,113,536/1,078,272,823.80
  6. Step 6: Final answer
    x = 648,756,026.10

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Double scale
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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.