Home / 56,743,811.24-85,127,672.40-18,402,335.72

Finding the Fourth Proportional to 56,743,811.24, 85,127,672.40 and 18,402,335.72

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Solution

The fourth proportional to 56,743,811.24, 85,127,672.40 and 18,402,335.72 is: 27,607,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,743,811.24 : 85,127,672.40 = 18,402,335.72 : x
  2. Step 2: Convert to fraction form
    56,743,811.24/85,127,672.40 = 18,402,335.72/x
  3. Step 3: Cross multiply
    56,743,811.24x = 85,127,672.40 × 18,402,335.72
  4. Step 4: Simplify right side
    56,743,811.24x = 1,566,548,006,566,978.25
  5. Step 5: Solve for x
    x = 1,566,548,006,566,978.25/56,743,811.24
  6. Step 6: Final answer
    x = 27,607,380.83

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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.