Home / 15,047,867.12-20,766,178.64-8,172,398.40

Finding the Fourth Proportional to 15,047,867.12, 20,766,178.64 and 8,172,398.40

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Solution

The fourth proportional to 15,047,867.12, 20,766,178.64 and 8,172,398.40 is: 11,277,976.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,867.12 : 20,766,178.64 = 8,172,398.40 : x
  2. Step 2: Convert to fraction form
    15,047,867.12/20,766,178.64 = 8,172,398.40/x
  3. Step 3: Cross multiply
    15,047,867.12x = 20,766,178.64 × 8,172,398.40
  4. Step 4: Simplify right side
    15,047,867.12x = 169,709,485,091,650.19
  5. Step 5: Solve for x
    x = 169,709,485,091,650.19/15,047,867.12
  6. Step 6: Final answer
    x = 11,277,976.06

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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.