Home / 15,594,098.55-21,520,663.11-8,979,669.51

Finding the Fourth Proportional to 15,594,098.55, 21,520,663.11 and 8,979,669.51

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Solution

The fourth proportional to 15,594,098.55, 21,520,663.11 and 8,979,669.51 is: 12,392,408.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594,098.55 : 21,520,663.11 = 8,979,669.51 : x
  2. Step 2: Convert to fraction form
    15,594,098.55/21,520,663.11 = 8,979,669.51/x
  3. Step 3: Cross multiply
    15,594,098.55x = 21,520,663.11 × 8,979,669.51
  4. Step 4: Simplify right side
    15,594,098.55x = 193,248,442,363,848.78
  5. Step 5: Solve for x
    x = 193,248,442,363,848.78/15,594,098.55
  6. Step 6: Final answer
    x = 12,392,408.69

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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.