Home / 435,119,768.40-651,167,998.20-398,840,062.80

Finding the Fourth Proportional to 435,119,768.40, 651,167,998.20 and 398,840,062.80

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Solution

The fourth proportional to 435,119,768.40, 651,167,998.20 and 398,840,062.80 is: 596,874,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,119,768.40 : 651,167,998.20 = 398,840,062.80 : x
  2. Step 2: Convert to fraction form
    435,119,768.40/651,167,998.20 = 398,840,062.80/x
  3. Step 3: Cross multiply
    435,119,768.40x = 651,167,998.20 × 398,840,062.80
  4. Step 4: Simplify right side
    435,119,768.40x = 259,711,885,295,438,304
  5. Step 5: Solve for x
    x = 259,711,885,295,438,304/435,119,768.40
  6. Step 6: Final answer
    x = 596,874,479.53

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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.