Home / 123,122,516.40-169,894,136.88-70,928,449.20

Finding the Fourth Proportional to 123,122,516.40, 169,894,136.88 and 70,928,449.20

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Solution

The fourth proportional to 123,122,516.40, 169,894,136.88 and 70,928,449.20 is: 97,872,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,122,516.40 : 169,894,136.88 = 70,928,449.20 : x
  2. Step 2: Convert to fraction form
    123,122,516.40/169,894,136.88 = 70,928,449.20/x
  3. Step 3: Cross multiply
    123,122,516.40x = 169,894,136.88 × 70,928,449.20
  4. Step 4: Simplify right side
    123,122,516.40x = 12,050,327,657,070,926
  5. Step 5: Solve for x
    x = 12,050,327,657,070,926/123,122,516.40
  6. Step 6: Final answer
    x = 97,872,655.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.