Home / 20,804,690.73-28,712,634.27-11,984,446.83

Finding the Fourth Proportional to 20,804,690.73, 28,712,634.27 and 11,984,446.83

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Solution

The fourth proportional to 20,804,690.73, 28,712,634.27 and 11,984,446.83 is: 16,539,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,690.73 : 28,712,634.27 = 11,984,446.83 : x
  2. Step 2: Convert to fraction form
    20,804,690.73/28,712,634.27 = 11,984,446.83/x
  3. Step 3: Cross multiply
    20,804,690.73x = 28,712,634.27 × 11,984,446.83
  4. Step 4: Simplify right side
    20,804,690.73x = 344,105,038,758,050.88
  5. Step 5: Solve for x
    x = 344,105,038,758,050.88/20,804,690.73
  6. Step 6: Final answer
    x = 16,539,781.50

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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.