Home / 143,584,511.47-198,143,934.59-87,825,835.92

Finding the Fourth Proportional to 143,584,511.47, 198,143,934.59 and 87,825,835.92

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Solution

The fourth proportional to 143,584,511.47, 198,143,934.59 and 87,825,835.92 is: 121,198,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,584,511.47 : 198,143,934.59 = 87,825,835.92 : x
  2. Step 2: Convert to fraction form
    143,584,511.47/198,143,934.59 = 87,825,835.92/x
  3. Step 3: Cross multiply
    143,584,511.47x = 198,143,934.59 × 87,825,835.92
  4. Step 4: Simplify right side
    143,584,511.47x = 17,402,156,688,148,464
  5. Step 5: Solve for x
    x = 17,402,156,688,148,464/143,584,511.47
  6. Step 6: Final answer
    x = 121,198,007.43

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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.