Home / 15,399,182.66-21,242,359.80-9,893,377.35

Finding the Fourth Proportional to 15,399,182.66, 21,242,359.80 and 9,893,377.35

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Solution

The fourth proportional to 15,399,182.66, 21,242,359.80 and 9,893,377.35 is: 13,647,391.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,399,182.66 : 21,242,359.80 = 9,893,377.35 : x
  2. Step 2: Convert to fraction form
    15,399,182.66/21,242,359.80 = 9,893,377.35/x
  3. Step 3: Cross multiply
    15,399,182.66x = 21,242,359.80 × 9,893,377.35
  4. Step 4: Simplify right side
    15,399,182.66x = 210,158,681,305,870.53
  5. Step 5: Solve for x
    x = 210,158,681,305,870.53/15,399,182.66
  6. Step 6: Final answer
    x = 13,647,391.94

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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.