Home / 431,569,307.60-647,353,961.40-247,147,470.80

Finding the Fourth Proportional to 431,569,307.60, 647,353,961.40 and 247,147,470.80

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Solution

The fourth proportional to 431,569,307.60, 647,353,961.40 and 247,147,470.80 is: 370,721,206.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,307.60 : 647,353,961.40 = 247,147,470.80 : x
  2. Step 2: Convert to fraction form
    431,569,307.60/647,353,961.40 = 247,147,470.80/x
  3. Step 3: Cross multiply
    431,569,307.60x = 647,353,961.40 × 247,147,470.80
  4. Step 4: Simplify right side
    431,569,307.60x = 159,991,894,272,370,816
  5. Step 5: Solve for x
    x = 159,991,894,272,370,816/431,569,307.60
  6. Step 6: Final answer
    x = 370,721,206.20

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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.