Home / 13,101,659.65-18,080,048.11-7,141,117.81

Finding the Fourth Proportional to 13,101,659.65, 18,080,048.11 and 7,141,117.81

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Solution

The fourth proportional to 13,101,659.65, 18,080,048.11 and 7,141,117.81 is: 9,854,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101,659.65 : 18,080,048.11 = 7,141,117.81 : x
  2. Step 2: Convert to fraction form
    13,101,659.65/18,080,048.11 = 7,141,117.81/x
  3. Step 3: Cross multiply
    13,101,659.65x = 18,080,048.11 × 7,141,117.81
  4. Step 4: Simplify right side
    13,101,659.65x = 129,111,753,563,977.83
  5. Step 5: Solve for x
    x = 129,111,753,563,977.83/13,101,659.65
  6. Step 6: Final answer
    x = 9,854,610.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.