Home / 12,745,162.12-19,117,761.46-9,729,649.42

Finding the Fourth Proportional to 12,745,162.12, 19,117,761.46 and 9,729,649.42

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Solution

The fourth proportional to 12,745,162.12, 19,117,761.46 and 9,729,649.42 is: 14,594,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745,162.12 : 19,117,761.46 = 9,729,649.42 : x
  2. Step 2: Convert to fraction form
    12,745,162.12/19,117,761.46 = 9,729,649.42/x
  3. Step 3: Cross multiply
    12,745,162.12x = 19,117,761.46 × 9,729,649.42
  4. Step 4: Simplify right side
    12,745,162.12x = 186,009,116,700,987.38
  5. Step 5: Solve for x
    x = 186,009,116,700,987.38/12,745,162.12
  6. Step 6: Final answer
    x = 14,594,488.08

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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.