Home / 312,984,136.80-469,098,291.60-159,551,215.20

Finding the Fourth Proportional to 312,984,136.80, 469,098,291.60 and 159,551,215.20

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Solution

The fourth proportional to 312,984,136.80, 469,098,291.60 and 159,551,215.20 is: 239,134,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,984,136.80 : 469,098,291.60 = 159,551,215.20 : x
  2. Step 2: Convert to fraction form
    312,984,136.80/469,098,291.60 = 159,551,215.20/x
  3. Step 3: Cross multiply
    312,984,136.80x = 469,098,291.60 × 159,551,215.20
  4. Step 4: Simplify right side
    312,984,136.80x = 74,845,202,473,023,952
  5. Step 5: Solve for x
    x = 74,845,202,473,023,952/312,984,136.80
  6. Step 6: Final answer
    x = 239,134,172.22

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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.