Home / 8,461,129.80-12,687,029.10-3,406,729.80

Finding the Fourth Proportional to 8,461,129.80, 12,687,029.10 and 3,406,729.80

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Solution

The fourth proportional to 8,461,129.80, 12,687,029.10 and 3,406,729.80 is: 5,108,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461,129.80 : 12,687,029.10 = 3,406,729.80 : x
  2. Step 2: Convert to fraction form
    8,461,129.80/12,687,029.10 = 3,406,729.80/x
  3. Step 3: Cross multiply
    8,461,129.80x = 12,687,029.10 × 3,406,729.80
  4. Step 4: Simplify right side
    8,461,129.80x = 43,221,280,108,437.18
  5. Step 5: Solve for x
    x = 43,221,280,108,437.18/8,461,129.80
  6. Step 6: Final answer
    x = 5,108,216.18

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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.