Home / 12,128,637.90-18,193,248.45-3,609,252.30

Finding the Fourth Proportional to 12,128,637.90, 18,193,248.45 and 3,609,252.30

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Solution

The fourth proportional to 12,128,637.90, 18,193,248.45 and 3,609,252.30 is: 5,413,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,637.90 : 18,193,248.45 = 3,609,252.30 : x
  2. Step 2: Convert to fraction form
    12,128,637.90/18,193,248.45 = 3,609,252.30/x
  3. Step 3: Cross multiply
    12,128,637.90x = 18,193,248.45 × 3,609,252.30
  4. Step 4: Simplify right side
    12,128,637.90x = 65,664,023,812,633.93
  5. Step 5: Solve for x
    x = 65,664,023,812,633.93/12,128,637.90
  6. Step 6: Final answer
    x = 5,413,965.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.