Home / 38,315,103.60-57,472,655.40-20,112,265.20

Finding the Fourth Proportional to 38,315,103.60, 57,472,655.40 and 20,112,265.20

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Solution

The fourth proportional to 38,315,103.60, 57,472,655.40 and 20,112,265.20 is: 30,168,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,315,103.60 : 57,472,655.40 = 20,112,265.20 : x
  2. Step 2: Convert to fraction form
    38,315,103.60/57,472,655.40 = 20,112,265.20/x
  3. Step 3: Cross multiply
    38,315,103.60x = 57,472,655.40 × 20,112,265.20
  4. Step 4: Simplify right side
    38,315,103.60x = 1,155,905,287,153,012
  5. Step 5: Solve for x
    x = 1,155,905,287,153,012/38,315,103.60
  6. Step 6: Final answer
    x = 30,168,397.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.