Home / 215,013,619.81-296,710,248.92-126,935,989.86

Finding the Fourth Proportional to 215,013,619.81, 296,710,248.92 and 126,935,989.86

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Solution

The fourth proportional to 215,013,619.81, 296,710,248.92 and 126,935,989.86 is: 175,166,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,013,619.81 : 296,710,248.92 = 126,935,989.86 : x
  2. Step 2: Convert to fraction form
    215,013,619.81/296,710,248.92 = 126,935,989.86/x
  3. Step 3: Cross multiply
    215,013,619.81x = 296,710,248.92 × 126,935,989.86
  4. Step 4: Simplify right side
    215,013,619.81x = 37,663,209,147,632,520
  5. Step 5: Solve for x
    x = 37,663,209,147,632,520/215,013,619.81
  6. Step 6: Final answer
    x = 175,166,620.52

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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.