Home / 28,359,950.40-42,560,920.80-18,772,142.40

Finding the Fourth Proportional to 28,359,950.40, 42,560,920.80 and 18,772,142.40

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Solution

The fourth proportional to 28,359,950.40, 42,560,920.80 and 18,772,142.40 is: 28,172,110.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359,950.40 : 42,560,920.80 = 18,772,142.40 : x
  2. Step 2: Convert to fraction form
    28,359,950.40/42,560,920.80 = 18,772,142.40/x
  3. Step 3: Cross multiply
    28,359,950.40x = 42,560,920.80 × 18,772,142.40
  4. Step 4: Simplify right side
    28,359,950.40x = 798,959,665,932,721.75
  5. Step 5: Solve for x
    x = 798,959,665,932,721.75/28,359,950.40
  6. Step 6: Final answer
    x = 28,172,110.83

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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.