Home / 431,569,397.60-647,354,096.40-247,147,560.80

Finding the Fourth Proportional to 431,569,397.60, 647,354,096.40 and 247,147,560.80

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Solution

The fourth proportional to 431,569,397.60, 647,354,096.40 and 247,147,560.80 is: 370,721,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,397.60 : 647,354,096.40 = 247,147,560.80 : x
  2. Step 2: Convert to fraction form
    431,569,397.60/647,354,096.40 = 247,147,560.80/x
  3. Step 3: Cross multiply
    431,569,397.60x = 647,354,096.40 × 247,147,560.80
  4. Step 4: Simplify right side
    431,569,397.60x = 159,991,985,899,148,064
  5. Step 5: Solve for x
    x = 159,991,985,899,148,064/431,569,397.60
  6. Step 6: Final answer
    x = 370,721,341.20

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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.