Home / 20,860,120.60-31,252,856.10-17,874,136.60

Finding the Fourth Proportional to 20,860,120.60, 31,252,856.10 and 17,874,136.60

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Solution

The fourth proportional to 20,860,120.60, 31,252,856.10 and 17,874,136.60 is: 26,779,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,120.60 : 31,252,856.10 = 17,874,136.60 : x
  2. Step 2: Convert to fraction form
    20,860,120.60/31,252,856.10 = 17,874,136.60/x
  3. Step 3: Cross multiply
    20,860,120.60x = 31,252,856.10 × 17,874,136.60
  4. Step 4: Simplify right side
    20,860,120.60x = 558,617,819,071,543.31
  5. Step 5: Solve for x
    x = 558,617,819,071,543.31/20,860,120.60
  6. Step 6: Final answer
    x = 26,779,222.89

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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.