Home / 91,973,600.80-137,960,401.20-77,817,824.80

Finding the Fourth Proportional to 91,973,600.80, 137,960,401.20 and 77,817,824.80

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Solution

The fourth proportional to 91,973,600.80, 137,960,401.20 and 77,817,824.80 is: 116,726,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,973,600.80 : 137,960,401.20 = 77,817,824.80 : x
  2. Step 2: Convert to fraction form
    91,973,600.80/137,960,401.20 = 77,817,824.80/x
  3. Step 3: Cross multiply
    91,973,600.80x = 137,960,401.20 × 77,817,824.80
  4. Step 4: Simplify right side
    91,973,600.80x = 10,735,778,329,919,308
  5. Step 5: Solve for x
    x = 10,735,778,329,919,308/91,973,600.80
  6. Step 6: Final answer
    x = 116,726,737.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.