Home / 20,703,610.40-31,055,415.60-5,559,072.80

Finding the Fourth Proportional to 20,703,610.40, 31,055,415.60 and 5,559,072.80

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Solution

The fourth proportional to 20,703,610.40, 31,055,415.60 and 5,559,072.80 is: 8,338,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703,610.40 : 31,055,415.60 = 5,559,072.80 : x
  2. Step 2: Convert to fraction form
    20,703,610.40/31,055,415.60 = 5,559,072.80/x
  3. Step 3: Cross multiply
    20,703,610.40x = 31,055,415.60 × 5,559,072.80
  4. Step 4: Simplify right side
    20,703,610.40x = 172,639,316,154,655.69
  5. Step 5: Solve for x
    x = 172,639,316,154,655.69/20,703,610.40
  6. Step 6: Final answer
    x = 8,338,609.20

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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.