Home / 13,128,952.40-18,117,979.38-7,248,597.96

Finding the Fourth Proportional to 13,128,952.40, 18,117,979.38 and 7,248,597.96

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Solution

The fourth proportional to 13,128,952.40, 18,117,979.38 and 7,248,597.96 is: 10,003,079.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128,952.40 : 18,117,979.38 = 7,248,597.96 : x
  2. Step 2: Convert to fraction form
    13,128,952.40/18,117,979.38 = 7,248,597.96/x
  3. Step 3: Cross multiply
    13,128,952.40x = 18,117,979.38 × 7,248,597.96
  4. Step 4: Simplify right side
    13,128,952.40x = 131,329,948,305,247.62
  5. Step 5: Solve for x
    x = 131,329,948,305,247.62/13,128,952.40
  6. Step 6: Final answer
    x = 10,003,079.02

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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.