Home / 475,048,872.20-712,573,308.30-409,291,905.80

Finding the Fourth Proportional to 475,048,872.20, 712,573,308.30 and 409,291,905.80

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Solution

The fourth proportional to 475,048,872.20, 712,573,308.30 and 409,291,905.80 is: 613,937,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,048,872.20 : 712,573,308.30 = 409,291,905.80 : x
  2. Step 2: Convert to fraction form
    475,048,872.20/712,573,308.30 = 409,291,905.80/x
  3. Step 3: Cross multiply
    475,048,872.20x = 712,573,308.30 × 409,291,905.80
  4. Step 4: Simplify right side
    475,048,872.20x = 291,650,487,376,317,952
  5. Step 5: Solve for x
    x = 291,650,487,376,317,952/475,048,872.20
  6. Step 6: Final answer
    x = 613,937,858.70

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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.