Home / 12,490,542.42-17,241,705.12-8,140,686.90

Finding the Fourth Proportional to 12,490,542.42, 17,241,705.12 and 8,140,686.90

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Solution

The fourth proportional to 12,490,542.42, 17,241,705.12 and 8,140,686.90 is: 11,237,248.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490,542.42 : 17,241,705.12 = 8,140,686.90 : x
  2. Step 2: Convert to fraction form
    12,490,542.42/17,241,705.12 = 8,140,686.90/x
  3. Step 3: Cross multiply
    12,490,542.42x = 17,241,705.12 × 8,140,686.90
  4. Step 4: Simplify right side
    12,490,542.42x = 140,359,323,004,046.94
  5. Step 5: Solve for x
    x = 140,359,323,004,046.94/12,490,542.42
  6. Step 6: Final answer
    x = 11,237,248.01

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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.