Home / 9,989,471.55-14,978,139.60-3,916,927.89

Finding the Fourth Proportional to 9,989,471.55, 14,978,139.60 and 3,916,927.89

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Solution

The fourth proportional to 9,989,471.55, 14,978,139.60 and 3,916,927.89 is: 5,873,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,471.55 : 14,978,139.60 = 3,916,927.89 : x
  2. Step 2: Convert to fraction form
    9,989,471.55/14,978,139.60 = 3,916,927.89/x
  3. Step 3: Cross multiply
    9,989,471.55x = 14,978,139.60 × 3,916,927.89
  4. Step 4: Simplify right side
    9,989,471.55x = 58,668,292,739,553.45
  5. Step 5: Solve for x
    x = 58,668,292,739,553.45/9,989,471.55
  6. Step 6: Final answer
    x = 5,873,012.65

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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.