Home / 690,607,233.40-1,035,910,850.10-472,928,999.80

Finding the Fourth Proportional to 690,607,233.40, 1,035,910,850.10 and 472,928,999.80

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Solution

The fourth proportional to 690,607,233.40, 1,035,910,850.10 and 472,928,999.80 is: 709,393,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,607,233.40 : 1,035,910,850.10 = 472,928,999.80 : x
  2. Step 2: Convert to fraction form
    690,607,233.40/1,035,910,850.10 = 472,928,999.80/x
  3. Step 3: Cross multiply
    690,607,233.40x = 1,035,910,850.10 × 472,928,999.80
  4. Step 4: Simplify right side
    690,607,233.40x = 489,912,282,219,760,768
  5. Step 5: Solve for x
    x = 489,912,282,219,760,768/690,607,233.40
  6. Step 6: Final answer
    x = 709,393,499.70

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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.