Home / 10,557,534.80-15,836,302.20-7,870,149.20

Finding the Fourth Proportional to 10,557,534.80, 15,836,302.20 and 7,870,149.20

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Solution

The fourth proportional to 10,557,534.80, 15,836,302.20 and 7,870,149.20 is: 11,805,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557,534.80 : 15,836,302.20 = 7,870,149.20 : x
  2. Step 2: Convert to fraction form
    10,557,534.80/15,836,302.20 = 7,870,149.20/x
  3. Step 3: Cross multiply
    10,557,534.80x = 15,836,302.20 × 7,870,149.20
  4. Step 4: Simplify right side
    10,557,534.80x = 124,634,061,090,288.23
  5. Step 5: Solve for x
    x = 124,634,061,090,288.23/10,557,534.80
  6. Step 6: Final answer
    x = 11,805,223.80

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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.