Home / 72,862,610.40-100,480,839.80-47,707,181.55

Finding the Fourth Proportional to 72,862,610.40, 100,480,839.80 and 47,707,181.55

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Solution

The fourth proportional to 72,862,610.40, 100,480,839.80 and 47,707,181.55 is: 65,790,364.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,862,610.40 : 100,480,839.80 = 47,707,181.55 : x
  2. Step 2: Convert to fraction form
    72,862,610.40/100,480,839.80 = 47,707,181.55/x
  3. Step 3: Cross multiply
    72,862,610.40x = 100,480,839.80 × 47,707,181.55
  4. Step 4: Simplify right side
    72,862,610.40x = 4,793,657,666,396,530
  5. Step 5: Solve for x
    x = 4,793,657,666,396,530/72,862,610.40
  6. Step 6: Final answer
    x = 65,790,364.08

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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.