Home / 19,381,854.40-29,072,781.60-6,616,772.80

Finding the Fourth Proportional to 19,381,854.40, 29,072,781.60 and 6,616,772.80

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Solution

The fourth proportional to 19,381,854.40, 29,072,781.60 and 6,616,772.80 is: 9,925,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381,854.40 : 29,072,781.60 = 6,616,772.80 : x
  2. Step 2: Convert to fraction form
    19,381,854.40/29,072,781.60 = 6,616,772.80/x
  3. Step 3: Cross multiply
    19,381,854.40x = 29,072,781.60 × 6,616,772.80
  4. Step 4: Simplify right side
    19,381,854.40x = 192,367,990,511,220.50
  5. Step 5: Solve for x
    x = 192,367,990,511,220.50/19,381,854.40
  6. Step 6: Final answer
    x = 9,925,159.20

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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.