Home / 18,681,838.98-28,021,761.55-5,034,766.40

Finding the Fourth Proportional to 18,681,838.98, 28,021,761.55 and 5,034,766.40

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Solution

The fourth proportional to 18,681,838.98, 28,021,761.55 and 5,034,766.40 is: 7,551,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,838.98 : 28,021,761.55 = 5,034,766.40 : x
  2. Step 2: Convert to fraction form
    18,681,838.98/28,021,761.55 = 5,034,766.40/x
  3. Step 3: Cross multiply
    18,681,838.98x = 28,021,761.55 × 5,034,766.40
  4. Step 4: Simplify right side
    18,681,838.98x = 141,083,023,520,751.94
  5. Step 5: Solve for x
    x = 141,083,023,520,751.94/18,681,838.98
  6. Step 6: Final answer
    x = 7,551,880.93

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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.