Home / 7,150,639.60-9,868,077.30-3,887,673.88

Finding the Fourth Proportional to 7,150,639.60, 9,868,077.30 and 3,887,673.88

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Solution

The fourth proportional to 7,150,639.60, 9,868,077.30 and 3,887,673.88 is: 5,365,095.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150,639.60 : 9,868,077.30 = 3,887,673.88 : x
  2. Step 2: Convert to fraction form
    7,150,639.60/9,868,077.30 = 3,887,673.88/x
  3. Step 3: Cross multiply
    7,150,639.60x = 9,868,077.30 × 3,887,673.88
  4. Step 4: Simplify right side
    7,150,639.60x = 38,363,866,365,030.93
  5. Step 5: Solve for x
    x = 38,363,866,365,030.93/7,150,639.60
  6. Step 6: Final answer
    x = 5,365,095.78

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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.