Home / 20,777,206.30-31,165,809.45-13,124,455.90

Finding the Fourth Proportional to 20,777,206.30, 31,165,809.45 and 13,124,455.90

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Solution

The fourth proportional to 20,777,206.30, 31,165,809.45 and 13,124,455.90 is: 19,686,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777,206.30 : 31,165,809.45 = 13,124,455.90 : x
  2. Step 2: Convert to fraction form
    20,777,206.30/31,165,809.45 = 13,124,455.90/x
  3. Step 3: Cross multiply
    20,777,206.30x = 31,165,809.45 × 13,124,455.90
  4. Step 4: Simplify right side
    20,777,206.30x = 409,034,291,714,328.25
  5. Step 5: Solve for x
    x = 409,034,291,714,328.25/20,777,206.30
  6. Step 6: Final answer
    x = 19,686,683.85

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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.