Home / 425,332,070.20-637,998,105.30-243,429,657.40

Finding the Fourth Proportional to 425,332,070.20, 637,998,105.30 and 243,429,657.40

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Solution

The fourth proportional to 425,332,070.20, 637,998,105.30 and 243,429,657.40 is: 365,144,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,332,070.20 : 637,998,105.30 = 243,429,657.40 : x
  2. Step 2: Convert to fraction form
    425,332,070.20/637,998,105.30 = 243,429,657.40/x
  3. Step 3: Cross multiply
    425,332,070.20x = 637,998,105.30 × 243,429,657.40
  4. Step 4: Simplify right side
    425,332,070.20x = 155,307,660,195,028,128
  5. Step 5: Solve for x
    x = 155,307,660,195,028,128/425,332,070.20
  6. Step 6: Final answer
    x = 365,144,486.10

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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.