Home / 20,739,822.48-31,111,228.80-7,960,327.20

Finding the Fourth Proportional to 20,739,822.48, 31,111,228.80 and 7,960,327.20

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Solution

The fourth proportional to 20,739,822.48, 31,111,228.80 and 7,960,327.20 is: 11,941,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,822.48 : 31,111,228.80 = 7,960,327.20 : x
  2. Step 2: Convert to fraction form
    20,739,822.48/31,111,228.80 = 7,960,327.20/x
  3. Step 3: Cross multiply
    20,739,822.48x = 31,111,228.80 × 7,960,327.20
  4. Step 4: Simplify right side
    20,739,822.48x = 247,655,560,842,063.38
  5. Step 5: Solve for x
    x = 247,655,560,842,063.38/20,739,822.48
  6. Step 6: Final answer
    x = 11,941,064.64

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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.