Home / 139,943,824.64-209,976,359.52-75,172,051.52

Finding the Fourth Proportional to 139,943,824.64, 209,976,359.52 and 75,172,051.52

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Solution

The fourth proportional to 139,943,824.64, 209,976,359.52 and 75,172,051.52 is: 112,790,641.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,943,824.64 : 209,976,359.52 = 75,172,051.52 : x
  2. Step 2: Convert to fraction form
    139,943,824.64/209,976,359.52 = 75,172,051.52/x
  3. Step 3: Cross multiply
    139,943,824.64x = 209,976,359.52 × 75,172,051.52
  4. Step 4: Simplify right side
    139,943,824.64x = 15,784,353,715,819,482
  5. Step 5: Solve for x
    x = 15,784,353,715,819,482/139,943,824.64
  6. Step 6: Final answer
    x = 112,790,641.22

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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.