Home / 139,414,214.80-209,121,322.20-124,347,862.45

Finding the Fourth Proportional to 139,414,214.80, 209,121,322.20 and 124,347,862.45

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Solution

The fourth proportional to 139,414,214.80, 209,121,322.20 and 124,347,862.45 is: 186,521,793.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,414,214.80 : 209,121,322.20 = 124,347,862.45 : x
  2. Step 2: Convert to fraction form
    139,414,214.80/209,121,322.20 = 124,347,862.45/x
  3. Step 3: Cross multiply
    139,414,214.80x = 209,121,322.20 × 124,347,862.45
  4. Step 4: Simplify right side
    139,414,214.80x = 26,003,789,408,287,732
  5. Step 5: Solve for x
    x = 26,003,789,408,287,732/139,414,214.80
  6. Step 6: Final answer
    x = 186,521,793.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.