Home / 1,250,304,047.40-1,875,456,071.10-638,774,524.20

Finding the Fourth Proportional to 1,250,304,047.40, 1,875,456,071.10 and 638,774,524.20

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Solution

The fourth proportional to 1,250,304,047.40, 1,875,456,071.10 and 638,774,524.20 is: 958,161,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,304,047.40 : 1,875,456,071.10 = 638,774,524.20 : x
  2. Step 2: Convert to fraction form
    1,250,304,047.40/1,875,456,071.10 = 638,774,524.20/x
  3. Step 3: Cross multiply
    1,250,304,047.40x = 1,875,456,071.10 × 638,774,524.20
  4. Step 4: Simplify right side
    1,250,304,047.40x = 1,197,993,559,474,903,808
  5. Step 5: Solve for x
    x = 1,197,993,559,474,903,808/1,250,304,047.40
  6. Step 6: Final answer
    x = 958,161,786.30

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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.