Home / 156,531,412.92-215,964,908.82-90,427,792.02

Finding the Fourth Proportional to 156,531,412.92, 215,964,908.82 and 90,427,792.02

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Solution

The fourth proportional to 156,531,412.92, 215,964,908.82 and 90,427,792.02 is: 124,762,368.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,531,412.92 : 215,964,908.82 = 90,427,792.02 : x
  2. Step 2: Convert to fraction form
    156,531,412.92/215,964,908.82 = 90,427,792.02/x
  3. Step 3: Cross multiply
    156,531,412.92x = 215,964,908.82 × 90,427,792.02
  4. Step 4: Simplify right side
    156,531,412.92x = 19,529,229,858,393,224
  5. Step 5: Solve for x
    x = 19,529,229,858,393,224/156,531,412.92
  6. Step 6: Final answer
    x = 124,762,368.74

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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.