Home / 139,414,205.80-209,121,308.70-124,347,853.45

Finding the Fourth Proportional to 139,414,205.80, 209,121,308.70 and 124,347,853.45

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Solution

The fourth proportional to 139,414,205.80, 209,121,308.70 and 124,347,853.45 is: 186,521,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,414,205.80 : 209,121,308.70 = 124,347,853.45 : x
  2. Step 2: Convert to fraction form
    139,414,205.80/209,121,308.70 = 124,347,853.45/x
  3. Step 3: Cross multiply
    139,414,205.80x = 209,121,308.70 × 124,347,853.45
  4. Step 4: Simplify right side
    139,414,205.80x = 26,003,785,847,499,808
  5. Step 5: Solve for x
    x = 26,003,785,847,499,808/139,414,205.80
  6. Step 6: Final answer
    x = 186,521,780.18

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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.