Home / 13,101,657.40-18,080,045.01-7,141,115.57

Finding the Fourth Proportional to 13,101,657.40, 18,080,045.01 and 7,141,115.57

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Solution

The fourth proportional to 13,101,657.40, 18,080,045.01 and 7,141,115.57 is: 9,854,607.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101,657.40 : 18,080,045.01 = 7,141,115.57 : x
  2. Step 2: Convert to fraction form
    13,101,657.40/18,080,045.01 = 7,141,115.57/x
  3. Step 3: Cross multiply
    13,101,657.40x = 18,080,045.01 × 7,141,115.57
  4. Step 4: Simplify right side
    13,101,657.40x = 129,111,690,801,106
  5. Step 5: Solve for x
    x = 129,111,690,801,106/13,101,657.40
  6. Step 6: Final answer
    x = 9,854,607.46

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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.