Home / 20,712,015.60-31,068,023.40-13,943,785.20

Finding the Fourth Proportional to 20,712,015.60, 31,068,023.40 and 13,943,785.20

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Solution

The fourth proportional to 20,712,015.60, 31,068,023.40 and 13,943,785.20 is: 20,915,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,015.60 : 31,068,023.40 = 13,943,785.20 : x
  2. Step 2: Convert to fraction form
    20,712,015.60/31,068,023.40 = 13,943,785.20/x
  3. Step 3: Cross multiply
    20,712,015.60x = 31,068,023.40 × 13,943,785.20
  4. Step 4: Simplify right side
    20,712,015.60x = 433,205,844,878,173.62
  5. Step 5: Solve for x
    x = 433,205,844,878,173.62/20,712,015.60
  6. Step 6: Final answer
    x = 20,915,677.80

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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.