Home / 1,312,442,375.67-1,811,134,646.57-725,711,449.59

Finding the Fourth Proportional to 1,312,442,375.67, 1,811,134,646.57 and 725,711,449.59

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Solution

The fourth proportional to 1,312,442,375.67, 1,811,134,646.57 and 725,711,449.59 is: 1,001,461,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,442,375.67 : 1,811,134,646.57 = 725,711,449.59 : x
  2. Step 2: Convert to fraction form
    1,312,442,375.67/1,811,134,646.57 = 725,711,449.59/x
  3. Step 3: Cross multiply
    1,312,442,375.67x = 1,811,134,646.57 × 725,711,449.59
  4. Step 4: Simplify right side
    1,312,442,375.67x = 1,314,361,149,761,358,592
  5. Step 5: Solve for x
    x = 1,314,361,149,761,358,592/1,312,442,375.67
  6. Step 6: Final answer
    x = 1,001,461,987.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.