Home / 38,746,809.60-58,120,214.40-13,188,652.80

Finding the Fourth Proportional to 38,746,809.60, 58,120,214.40 and 13,188,652.80

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Solution

The fourth proportional to 38,746,809.60, 58,120,214.40 and 13,188,652.80 is: 19,782,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,746,809.60 : 58,120,214.40 = 13,188,652.80 : x
  2. Step 2: Convert to fraction form
    38,746,809.60/58,120,214.40 = 13,188,652.80/x
  3. Step 3: Cross multiply
    38,746,809.60x = 58,120,214.40 × 13,188,652.80
  4. Step 4: Simplify right side
    38,746,809.60x = 766,527,328,383,160.38
  5. Step 5: Solve for x
    x = 766,527,328,383,160.38/38,746,809.60
  6. Step 6: Final answer
    x = 19,782,979.20

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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.