Home / 139,386,572.61-192,377,546.64-80,681,605.94

Finding the Fourth Proportional to 139,386,572.61, 192,377,546.64 and 80,681,605.94

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Solution

The fourth proportional to 139,386,572.61, 192,377,546.64 and 80,681,605.94 is: 111,354,552.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,386,572.61 : 192,377,546.64 = 80,681,605.94 : x
  2. Step 2: Convert to fraction form
    139,386,572.61/192,377,546.64 = 80,681,605.94/x
  3. Step 3: Cross multiply
    139,386,572.61x = 192,377,546.64 × 80,681,605.94
  4. Step 4: Simplify right side
    139,386,572.61x = 15,521,329,409,712,450
  5. Step 5: Solve for x
    x = 15,521,329,409,712,450/139,386,572.61
  6. Step 6: Final answer
    x = 111,354,552.44

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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.