Home / 77,487,434.72-106,932,650.31-42,680,125.16

Finding the Fourth Proportional to 77,487,434.72, 106,932,650.31 and 42,680,125.16

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Solution

The fourth proportional to 77,487,434.72, 106,932,650.31 and 42,680,125.16 is: 58,898,567.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,487,434.72 : 106,932,650.31 = 42,680,125.16 : x
  2. Step 2: Convert to fraction form
    77,487,434.72/106,932,650.31 = 42,680,125.16/x
  3. Step 3: Cross multiply
    77,487,434.72x = 106,932,650.31 × 42,680,125.16
  4. Step 4: Simplify right side
    77,487,434.72x = 4,563,898,898,921,313
  5. Step 5: Solve for x
    x = 4,563,898,898,921,313/77,487,434.72
  6. Step 6: Final answer
    x = 58,898,567.43

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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.