Home / 15,945,345.66-22,005,292.50-8,978,419.02

Finding the Fourth Proportional to 15,945,345.66, 22,005,292.50 and 8,978,419.02

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Solution

The fourth proportional to 15,945,345.66, 22,005,292.50 and 8,978,419.02 is: 12,390,621.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945,345.66 : 22,005,292.50 = 8,978,419.02 : x
  2. Step 2: Convert to fraction form
    15,945,345.66/22,005,292.50 = 8,978,419.02/x
  3. Step 3: Cross multiply
    15,945,345.66x = 22,005,292.50 × 8,978,419.02
  4. Step 4: Simplify right side
    15,945,345.66x = 197,572,736,722,663.34
  5. Step 5: Solve for x
    x = 197,572,736,722,663.34/15,945,345.66
  6. Step 6: Final answer
    x = 12,390,621.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.