Home / 138,452,899.05-191,123,831.21-86,267,717.87

Finding the Fourth Proportional to 138,452,899.05, 191,123,831.21 and 86,267,717.87

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Solution

The fourth proportional to 138,452,899.05, 191,123,831.21 and 86,267,717.87 is: 119,086,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,899.05 : 191,123,831.21 = 86,267,717.87 : x
  2. Step 2: Convert to fraction form
    138,452,899.05/191,123,831.21 = 86,267,717.87/x
  3. Step 3: Cross multiply
    138,452,899.05x = 191,123,831.21 × 86,267,717.87
  4. Step 4: Simplify right side
    138,452,899.05x = 16,487,816,747,670,824
  5. Step 5: Solve for x
    x = 16,487,816,747,670,824/138,452,899.05
  6. Step 6: Final answer
    x = 119,086,106.98

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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.