Home / 139,386,571.61-192,377,545.26-80,681,604.94

Finding the Fourth Proportional to 139,386,571.61, 192,377,545.26 and 80,681,604.94

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Solution

The fourth proportional to 139,386,571.61, 192,377,545.26 and 80,681,604.94 is: 111,354,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,386,571.61 : 192,377,545.26 = 80,681,604.94 : x
  2. Step 2: Convert to fraction form
    139,386,571.61/192,377,545.26 = 80,681,604.94/x
  3. Step 3: Cross multiply
    139,386,571.61x = 192,377,545.26 × 80,681,604.94
  4. Step 4: Simplify right side
    139,386,571.61x = 15,521,329,105,032,402
  5. Step 5: Solve for x
    x = 15,521,329,105,032,402/139,386,571.61
  6. Step 6: Final answer
    x = 111,354,551.06

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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.