Home / 56,478,610.60-84,729,725.70-18,143,999.80

Finding the Fourth Proportional to 56,478,610.60, 84,729,725.70 and 18,143,999.80

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Solution

The fourth proportional to 56,478,610.60, 84,729,725.70 and 18,143,999.80 is: 27,219,793.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,478,610.60 : 84,729,725.70 = 18,143,999.80 : x
  2. Step 2: Convert to fraction form
    56,478,610.60/84,729,725.70 = 18,143,999.80/x
  3. Step 3: Cross multiply
    56,478,610.60x = 84,729,725.70 × 18,143,999.80
  4. Step 4: Simplify right side
    56,478,610.60x = 1,537,336,126,154,855
  5. Step 5: Solve for x
    x = 1,537,336,126,154,855/56,478,610.60
  6. Step 6: Final answer
    x = 27,219,793.65

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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.