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Finding the Fourth Proportional to 172,649,627.60, 258,974,441.40 and 164,687,003.60

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Solution

The fourth proportional to 172,649,627.60, 258,974,441.40 and 164,687,003.60 is: 247,030,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,649,627.60 : 258,974,441.40 = 164,687,003.60 : x
  2. Step 2: Convert to fraction form
    172,649,627.60/258,974,441.40 = 164,687,003.60/x
  3. Step 3: Cross multiply
    172,649,627.60x = 258,974,441.40 × 164,687,003.60
  4. Step 4: Simplify right side
    172,649,627.60x = 42,649,724,763,149,792
  5. Step 5: Solve for x
    x = 42,649,724,763,149,792/172,649,627.60
  6. Step 6: Final answer
    x = 247,030,505.40

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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.