Home / 12,108,820.40-18,145,287.29-9,965,079.26

Finding the Fourth Proportional to 12,108,820.40, 18,145,287.29 and 9,965,079.26

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Solution

The fourth proportional to 12,108,820.40, 18,145,287.29 and 9,965,079.26 is: 14,932,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108,820.40 : 18,145,287.29 = 9,965,079.26 : x
  2. Step 2: Convert to fraction form
    12,108,820.40/18,145,287.29 = 9,965,079.26/x
  3. Step 3: Cross multiply
    12,108,820.40x = 18,145,287.29 × 9,965,079.26
  4. Step 4: Simplify right side
    12,108,820.40x = 180,819,225,899,768.78
  5. Step 5: Solve for x
    x = 180,819,225,899,768.78/12,108,820.40
  6. Step 6: Final answer
    x = 14,932,852.25

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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.