Home / 20,708,943.60-31,063,415.40-18,693,404.40

Finding the Fourth Proportional to 20,708,943.60, 31,063,415.40 and 18,693,404.40

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Solution

The fourth proportional to 20,708,943.60, 31,063,415.40 and 18,693,404.40 is: 28,040,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708,943.60 : 31,063,415.40 = 18,693,404.40 : x
  2. Step 2: Convert to fraction form
    20,708,943.60/31,063,415.40 = 18,693,404.40/x
  3. Step 3: Cross multiply
    20,708,943.60x = 31,063,415.40 × 18,693,404.40
  4. Step 4: Simplify right side
    20,708,943.60x = 580,680,986,117,387.62
  5. Step 5: Solve for x
    x = 580,680,986,117,387.62/20,708,943.60
  6. Step 6: Final answer
    x = 28,040,106.60

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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.