Home / 20,678,281.96-31,023,753.18-10,588,040.68

Finding the Fourth Proportional to 20,678,281.96, 31,023,753.18 and 10,588,040.68

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Solution

The fourth proportional to 20,678,281.96, 31,023,753.18 and 10,588,040.68 is: 15,885,302.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,281.96 : 31,023,753.18 = 10,588,040.68 : x
  2. Step 2: Convert to fraction form
    20,678,281.96/31,023,753.18 = 10,588,040.68/x
  3. Step 3: Cross multiply
    20,678,281.96x = 31,023,753.18 × 10,588,040.68
  4. Step 4: Simplify right side
    20,678,281.96x = 328,480,760,716,119.38
  5. Step 5: Solve for x
    x = 328,480,760,716,119.38/20,678,281.96
  6. Step 6: Final answer
    x = 15,885,302.34

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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.