Home / 20,785,803.75-31,176,701.28-6,405,010.29

Finding the Fourth Proportional to 20,785,803.75, 31,176,701.28 and 6,405,010.29

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Solution

The fourth proportional to 20,785,803.75, 31,176,701.28 and 6,405,010.29 is: 9,606,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,803.75 : 31,176,701.28 = 6,405,010.29 : x
  2. Step 2: Convert to fraction form
    20,785,803.75/31,176,701.28 = 6,405,010.29/x
  3. Step 3: Cross multiply
    20,785,803.75x = 31,176,701.28 × 6,405,010.29
  4. Step 4: Simplify right side
    20,785,803.75x = 199,687,092,506,656.19
  5. Step 5: Solve for x
    x = 199,687,092,506,656.19/20,785,803.75
  6. Step 6: Final answer
    x = 9,606,897.81

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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.