Home / 187,949,781.60-281,924,672.40-136,931,445.60

Finding the Fourth Proportional to 187,949,781.60, 281,924,672.40 and 136,931,445.60

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Solution

The fourth proportional to 187,949,781.60, 281,924,672.40 and 136,931,445.60 is: 205,397,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,949,781.60 : 281,924,672.40 = 136,931,445.60 : x
  2. Step 2: Convert to fraction form
    187,949,781.60/281,924,672.40 = 136,931,445.60/x
  3. Step 3: Cross multiply
    187,949,781.60x = 281,924,672.40 × 136,931,445.60
  4. Step 4: Simplify right side
    187,949,781.60x = 38,604,352,942,038,416
  5. Step 5: Solve for x
    x = 38,604,352,942,038,416/187,949,781.60
  6. Step 6: Final answer
    x = 205,397,168.40

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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.