Home / 139,163,220.89-192,039,983.22-77,287,545.26

Finding the Fourth Proportional to 139,163,220.89, 192,039,983.22 and 77,287,545.26

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Solution

The fourth proportional to 139,163,220.89, 192,039,983.22 and 77,287,545.26 is: 106,653,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,220.89 : 192,039,983.22 = 77,287,545.26 : x
  2. Step 2: Convert to fraction form
    139,163,220.89/192,039,983.22 = 77,287,545.26/x
  3. Step 3: Cross multiply
    139,163,220.89x = 192,039,983.22 × 77,287,545.26
  4. Step 4: Simplify right side
    139,163,220.89x = 14,842,298,894,895,170
  5. Step 5: Solve for x
    x = 14,842,298,894,895,170/139,163,220.89
  6. Step 6: Final answer
    x = 106,653,890.30

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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.