Home / 139,923,877.86-193,095,622.17-77,199,972.66

Finding the Fourth Proportional to 139,923,877.86, 193,095,622.17 and 77,199,972.66

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Solution

The fourth proportional to 139,923,877.86, 193,095,622.17 and 77,199,972.66 is: 106,536,332.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,923,877.86 : 193,095,622.17 = 77,199,972.66 : x
  2. Step 2: Convert to fraction form
    139,923,877.86/193,095,622.17 = 77,199,972.66/x
  3. Step 3: Cross multiply
    139,923,877.86x = 193,095,622.17 × 77,199,972.66
  4. Step 4: Simplify right side
    139,923,877.86x = 14,906,976,752,289,688
  5. Step 5: Solve for x
    x = 14,906,976,752,289,688/139,923,877.86
  6. Step 6: Final answer
    x = 106,536,332.33

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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.