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Finding the Fourth Proportional to 356,569,709.80, 534,854,564.70 and 325,958,708.20

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Solution

The fourth proportional to 356,569,709.80, 534,854,564.70 and 325,958,708.20 is: 488,938,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,569,709.80 : 534,854,564.70 = 325,958,708.20 : x
  2. Step 2: Convert to fraction form
    356,569,709.80/534,854,564.70 = 325,958,708.20/x
  3. Step 3: Cross multiply
    356,569,709.80x = 534,854,564.70 × 325,958,708.20
  4. Step 4: Simplify right side
    356,569,709.80x = 174,340,502,984,485,312
  5. Step 5: Solve for x
    x = 174,340,502,984,485,312/356,569,709.80
  6. Step 6: Final answer
    x = 488,938,062.30

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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.