Home / 7,140,048.70-9,853,278.88-3,876,869.74

Finding the Fourth Proportional to 7,140,048.70, 9,853,278.88 and 3,876,869.74

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Solution

The fourth proportional to 7,140,048.70, 9,853,278.88 and 3,876,869.74 is: 5,350,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140,048.70 : 9,853,278.88 = 3,876,869.74 : x
  2. Step 2: Convert to fraction form
    7,140,048.70/9,853,278.88 = 3,876,869.74/x
  3. Step 3: Cross multiply
    7,140,048.70x = 9,853,278.88 × 3,876,869.74
  4. Step 4: Simplify right side
    7,140,048.70x = 38,199,878,729,653.09
  5. Step 5: Solve for x
    x = 38,199,878,729,653.09/7,140,048.70
  6. Step 6: Final answer
    x = 5,350,086.58

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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.