Home / 20,739,643.40-31,109,465.10-13,573,281.80

Finding the Fourth Proportional to 20,739,643.40, 31,109,465.10 and 13,573,281.80

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Solution

The fourth proportional to 20,739,643.40, 31,109,465.10 and 13,573,281.80 is: 20,359,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,643.40 : 31,109,465.10 = 13,573,281.80 : x
  2. Step 2: Convert to fraction form
    20,739,643.40/31,109,465.10 = 13,573,281.80/x
  3. Step 3: Cross multiply
    20,739,643.40x = 31,109,465.10 × 13,573,281.80
  4. Step 4: Simplify right side
    20,739,643.40x = 422,257,536,449,565.25
  5. Step 5: Solve for x
    x = 422,257,536,449,565.25/20,739,643.40
  6. Step 6: Final answer
    x = 20,359,922.70

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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.