Home / 20,712,424.60-31,057,577.70-8,731,624.60

Finding the Fourth Proportional to 20,712,424.60, 31,057,577.70 and 8,731,624.60

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Solution

The fourth proportional to 20,712,424.60, 31,057,577.70 and 8,731,624.60 is: 13,092,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,424.60 : 31,057,577.70 = 8,731,624.60 : x
  2. Step 2: Convert to fraction form
    20,712,424.60/31,057,577.70 = 8,731,624.60/x
  3. Step 3: Cross multiply
    20,712,424.60x = 31,057,577.70 × 8,731,624.60
  4. Step 4: Simplify right side
    20,712,424.60x = 271,183,109,461,731.41
  5. Step 5: Solve for x
    x = 271,183,109,461,731.41/20,712,424.60
  6. Step 6: Final answer
    x = 13,092,774.73

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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.