Home / 90,288,597-124,605,948.06-51,137,338.53

Finding the Fourth Proportional to 90,288,597, 124,605,948.06 and 51,137,338.53

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Solution

The fourth proportional to 90,288,597, 124,605,948.06 and 51,137,338.53 is: 70,573,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288,597 : 124,605,948.06 = 51,137,338.53 : x
  2. Step 2: Convert to fraction form
    90,288,597/124,605,948.06 = 51,137,338.53/x
  3. Step 3: Cross multiply
    90,288,597x = 124,605,948.06 × 51,137,338.53
  4. Step 4: Simplify right side
    90,288,597x = 6,372,016,548,795,817
  5. Step 5: Solve for x
    x = 6,372,016,548,795,817/90,288,597
  6. Step 6: Final answer
    x = 70,573,879.32

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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.