Home / 9,988,657.20-14,989,984.20-6,403,143.60

Finding the Fourth Proportional to 9,988,657.20, 14,989,984.20 and 6,403,143.60

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Solution

The fourth proportional to 9,988,657.20, 14,989,984.20 and 6,403,143.60 is: 9,609,201.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988,657.20 : 14,989,984.20 = 6,403,143.60 : x
  2. Step 2: Convert to fraction form
    9,988,657.20/14,989,984.20 = 6,403,143.60/x
  3. Step 3: Cross multiply
    9,988,657.20x = 14,989,984.20 × 6,403,143.60
  4. Step 4: Simplify right side
    9,988,657.20x = 95,983,021,394,331.11
  5. Step 5: Solve for x
    x = 95,983,021,394,331.11/9,988,657.20
  6. Step 6: Final answer
    x = 9,609,201.66

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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.