Home / 13,101,659.40-18,080,047.76-7,141,117.56

Finding the Fourth Proportional to 13,101,659.40, 18,080,047.76 and 7,141,117.56

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Solution

The fourth proportional to 13,101,659.40, 18,080,047.76 and 7,141,117.56 is: 9,854,610.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101,659.40 : 18,080,047.76 = 7,141,117.56 : x
  2. Step 2: Convert to fraction form
    13,101,659.40/18,080,047.76 = 7,141,117.56/x
  3. Step 3: Cross multiply
    13,101,659.40x = 18,080,047.76 × 7,141,117.56
  4. Step 4: Simplify right side
    13,101,659.40x = 129,111,746,544,574.67
  5. Step 5: Solve for x
    x = 129,111,746,544,574.67/13,101,659.40
  6. Step 6: Final answer
    x = 9,854,610.21

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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.