Home / 31,108,854.60-42,918,245.88-19,486,184.04

Finding the Fourth Proportional to 31,108,854.60, 42,918,245.88 and 19,486,184.04

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Solution

The fourth proportional to 31,108,854.60, 42,918,245.88 and 19,486,184.04 is: 26,883,433.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,108,854.60 : 42,918,245.88 = 19,486,184.04 : x
  2. Step 2: Convert to fraction form
    31,108,854.60/42,918,245.88 = 19,486,184.04/x
  3. Step 3: Cross multiply
    31,108,854.60x = 42,918,245.88 × 19,486,184.04
  4. Step 4: Simplify right side
    31,108,854.60x = 836,312,837,891,651.75
  5. Step 5: Solve for x
    x = 836,312,837,891,651.75/31,108,854.60
  6. Step 6: Final answer
    x = 26,883,433.95

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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.