Home / 20,866,901.18-31,291,217.62-8,562,422.79

Finding the Fourth Proportional to 20,866,901.18, 31,291,217.62 and 8,562,422.79

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Solution

The fourth proportional to 20,866,901.18, 31,291,217.62 and 8,562,422.79 is: 12,839,886.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866,901.18 : 31,291,217.62 = 8,562,422.79 : x
  2. Step 2: Convert to fraction form
    20,866,901.18/31,291,217.62 = 8,562,422.79/x
  3. Step 3: Cross multiply
    20,866,901.18x = 31,291,217.62 × 8,562,422.79
  4. Step 4: Simplify right side
    20,866,901.18x = 267,928,634,854,931.47
  5. Step 5: Solve for x
    x = 267,928,634,854,931.47/20,866,901.18
  6. Step 6: Final answer
    x = 12,839,886.12

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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.