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Finding the Fourth Proportional to 247,358,793.60, 371,038,190.40 and 155,525,788.80

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Solution

The fourth proportional to 247,358,793.60, 371,038,190.40 and 155,525,788.80 is: 233,288,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,358,793.60 : 371,038,190.40 = 155,525,788.80 : x
  2. Step 2: Convert to fraction form
    247,358,793.60/371,038,190.40 = 155,525,788.80/x
  3. Step 3: Cross multiply
    247,358,793.60x = 371,038,190.40 × 155,525,788.80
  4. Step 4: Simplify right side
    247,358,793.60x = 57,706,007,236,884,592
  5. Step 5: Solve for x
    x = 57,706,007,236,884,592/247,358,793.60
  6. Step 6: Final answer
    x = 233,288,683.20

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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.