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Finding the Fourth Proportional to 628,153,607.80, 942,230,411.70 and 352,654,593.40

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Solution

The fourth proportional to 628,153,607.80, 942,230,411.70 and 352,654,593.40 is: 528,981,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,153,607.80 : 942,230,411.70 = 352,654,593.40 : x
  2. Step 2: Convert to fraction form
    628,153,607.80/942,230,411.70 = 352,654,593.40/x
  3. Step 3: Cross multiply
    628,153,607.80x = 942,230,411.70 × 352,654,593.40
  4. Step 4: Simplify right side
    628,153,607.80x = 332,281,882,727,178,112
  5. Step 5: Solve for x
    x = 332,281,882,727,178,112/628,153,607.80
  6. Step 6: Final answer
    x = 528,981,890.10

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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.