Home / 15,129,534.72-20,878,030.08-8,253,606.72

Finding the Fourth Proportional to 15,129,534.72, 20,878,030.08 and 8,253,606.72

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Solution

The fourth proportional to 15,129,534.72, 20,878,030.08 and 8,253,606.72 is: 11,389,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129,534.72 : 20,878,030.08 = 8,253,606.72 : x
  2. Step 2: Convert to fraction form
    15,129,534.72/20,878,030.08 = 8,253,606.72/x
  3. Step 3: Cross multiply
    15,129,534.72x = 20,878,030.08 × 8,253,606.72
  4. Step 4: Simplify right side
    15,129,534.72x = 172,319,049,368,650.12
  5. Step 5: Solve for x
    x = 172,319,049,368,650.12/15,129,534.72
  6. Step 6: Final answer
    x = 11,389,580.22

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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.