Home / 18,438,862.80-25,444,963.70-10,178,747.78

Finding the Fourth Proportional to 18,438,862.80, 25,444,963.70 and 10,178,747.78

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Solution

The fourth proportional to 18,438,862.80, 25,444,963.70 and 10,178,747.78 is: 14,046,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438,862.80 : 25,444,963.70 = 10,178,747.78 : x
  2. Step 2: Convert to fraction form
    18,438,862.80/25,444,963.70 = 10,178,747.78/x
  3. Step 3: Cross multiply
    18,438,862.80x = 25,444,963.70 × 10,178,747.78
  4. Step 4: Simplify right side
    18,438,862.80x = 258,997,867,595,437.03
  5. Step 5: Solve for x
    x = 258,997,867,595,437.03/18,438,862.80
  6. Step 6: Final answer
    x = 14,046,303.74

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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.