Home / 12,879,098.15-19,286,760.76-9,459,275.31

Finding the Fourth Proportional to 12,879,098.15, 19,286,760.76 and 9,459,275.31

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Solution

The fourth proportional to 12,879,098.15, 19,286,760.76 and 9,459,275.31 is: 14,165,493.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,098.15 : 19,286,760.76 = 9,459,275.31 : x
  2. Step 2: Convert to fraction form
    12,879,098.15/19,286,760.76 = 9,459,275.31/x
  3. Step 3: Cross multiply
    12,879,098.15x = 19,286,760.76 × 9,459,275.31
  4. Step 4: Simplify right side
    12,879,098.15x = 182,438,779,843,296.66
  5. Step 5: Solve for x
    x = 182,438,779,843,296.66/12,879,098.15
  6. Step 6: Final answer
    x = 14,165,493.41

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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.