Home / 34,238,909.68-47,244,649.45-20,820,729.74

Finding the Fourth Proportional to 34,238,909.68, 47,244,649.45 and 20,820,729.74

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Solution

The fourth proportional to 34,238,909.68, 47,244,649.45 and 20,820,729.74 is: 28,729,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,238,909.68 : 47,244,649.45 = 20,820,729.74 : x
  2. Step 2: Convert to fraction form
    34,238,909.68/47,244,649.45 = 20,820,729.74/x
  3. Step 3: Cross multiply
    34,238,909.68x = 47,244,649.45 × 20,820,729.74
  4. Step 4: Simplify right side
    34,238,909.68x = 983,668,077,859,489.62
  5. Step 5: Solve for x
    x = 983,668,077,859,489.62/34,238,909.68
  6. Step 6: Final answer
    x = 28,729,538.62

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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.