Home / 18,431,562.42-27,659,675.50-7,648,862.90

Finding the Fourth Proportional to 18,431,562.42, 27,659,675.50 and 7,648,862.90

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Solution

The fourth proportional to 18,431,562.42, 27,659,675.50 and 7,648,862.90 is: 11,478,411.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431,562.42 : 27,659,675.50 = 7,648,862.90 : x
  2. Step 2: Convert to fraction form
    18,431,562.42/27,659,675.50 = 7,648,862.90/x
  3. Step 3: Cross multiply
    18,431,562.42x = 27,659,675.50 × 7,648,862.90
  4. Step 4: Simplify right side
    18,431,562.42x = 211,565,065,699,869.84
  5. Step 5: Solve for x
    x = 211,565,065,699,869.84/18,431,562.42
  6. Step 6: Final answer
    x = 11,478,411.92

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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.