Home / 13,534,282.34-18,678,490.80-7,423,891.82

Finding the Fourth Proportional to 13,534,282.34, 18,678,490.80 and 7,423,891.82

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Solution

The fourth proportional to 13,534,282.34, 18,678,490.80 and 7,423,891.82 is: 10,245,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534,282.34 : 18,678,490.80 = 7,423,891.82 : x
  2. Step 2: Convert to fraction form
    13,534,282.34/18,678,490.80 = 7,423,891.82/x
  3. Step 3: Cross multiply
    13,534,282.34x = 18,678,490.80 × 7,423,891.82
  4. Step 4: Simplify right side
    13,534,282.34x = 138,667,094,966,672.81
  5. Step 5: Solve for x
    x = 138,667,094,966,672.81/13,534,282.34
  6. Step 6: Final answer
    x = 10,245,618.61

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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.