Home / 12,141,547.80-18,188,702.10-7,334,959.20

Finding the Fourth Proportional to 12,141,547.80, 18,188,702.10 and 7,334,959.20

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Solution

The fourth proportional to 12,141,547.80, 18,188,702.10 and 7,334,959.20 is: 10,988,169.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141,547.80 : 18,188,702.10 = 7,334,959.20 : x
  2. Step 2: Convert to fraction form
    12,141,547.80/18,188,702.10 = 7,334,959.20/x
  3. Step 3: Cross multiply
    12,141,547.80x = 18,188,702.10 × 7,334,959.20
  4. Step 4: Simplify right side
    12,141,547.80x = 133,413,387,804,454.33
  5. Step 5: Solve for x
    x = 133,413,387,804,454.33/12,141,547.80
  6. Step 6: Final answer
    x = 10,988,169.71

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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.