Home / 156,031,333.71-215,322,703.04-89,951,516.90

Finding the Fourth Proportional to 156,031,333.71, 215,322,703.04 and 89,951,516.90

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Solution

The fourth proportional to 156,031,333.71, 215,322,703.04 and 89,951,516.90 is: 124,132,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,031,333.71 : 215,322,703.04 = 89,951,516.90 : x
  2. Step 2: Convert to fraction form
    156,031,333.71/215,322,703.04 = 89,951,516.90/x
  3. Step 3: Cross multiply
    156,031,333.71x = 215,322,703.04 × 89,951,516.90
  4. Step 4: Simplify right side
    156,031,333.71x = 19,368,603,762,623,156
  5. Step 5: Solve for x
    x = 19,368,603,762,623,156/156,031,333.71
  6. Step 6: Final answer
    x = 124,132,783.47

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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.