Home / 186,860,715.60-280,207,092.60-71,807,019.60

Finding the Fourth Proportional to 186,860,715.60, 280,207,092.60 and 71,807,019.60

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Solution

The fourth proportional to 186,860,715.60, 280,207,092.60 and 71,807,019.60 is: 107,678,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,860,715.60 : 280,207,092.60 = 71,807,019.60 : x
  2. Step 2: Convert to fraction form
    186,860,715.60/280,207,092.60 = 71,807,019.60/x
  3. Step 3: Cross multiply
    186,860,715.60x = 280,207,092.60 × 71,807,019.60
  4. Step 4: Simplify right side
    186,860,715.60x = 20,120,836,190,387,216
  5. Step 5: Solve for x
    x = 20,120,836,190,387,216/186,860,715.60
  6. Step 6: Final answer
    x = 107,678,257.18

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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.