Home / 139,599,917.70-209,431,275.42-42,565,434.06

Finding the Fourth Proportional to 139,599,917.70, 209,431,275.42 and 42,565,434.06

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Solution

The fourth proportional to 139,599,917.70, 209,431,275.42 and 42,565,434.06 is: 63,857,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,599,917.70 : 209,431,275.42 = 42,565,434.06 : x
  2. Step 2: Convert to fraction form
    139,599,917.70/209,431,275.42 = 42,565,434.06/x
  3. Step 3: Cross multiply
    139,599,917.70x = 209,431,275.42 × 42,565,434.06
  4. Step 4: Simplify right side
    139,599,917.70x = 8,914,533,143,991,709
  5. Step 5: Solve for x
    x = 8,914,533,143,991,709/139,599,917.70
  6. Step 6: Final answer
    x = 63,857,724.92

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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.