Home / 77,669,140.60-107,223,712.68-56,737,672.66

Finding the Fourth Proportional to 77,669,140.60, 107,223,712.68 and 56,737,672.66

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Solution

The fourth proportional to 77,669,140.60, 107,223,712.68 and 56,737,672.66 is: 78,327,426.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,669,140.60 : 107,223,712.68 = 56,737,672.66 : x
  2. Step 2: Convert to fraction form
    77,669,140.60/107,223,712.68 = 56,737,672.66/x
  3. Step 3: Cross multiply
    77,669,140.60x = 107,223,712.68 × 56,737,672.66
  4. Step 4: Simplify right side
    77,669,140.60x = 6,083,623,911,427,731
  5. Step 5: Solve for x
    x = 6,083,623,911,427,731/77,669,140.60
  6. Step 6: Final answer
    x = 78,327,426.63

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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.