Home / 18,438,870.38-25,446,048.45-10,178,913.09

Finding the Fourth Proportional to 18,438,870.38, 25,446,048.45 and 10,178,913.09

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Solution

The fourth proportional to 18,438,870.38, 25,446,048.45 and 10,178,913.09 is: 14,047,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438,870.38 : 25,446,048.45 = 10,178,913.09 : x
  2. Step 2: Convert to fraction form
    18,438,870.38/25,446,048.45 = 10,178,913.09/x
  3. Step 3: Cross multiply
    18,438,870.38x = 25,446,048.45 × 10,178,913.09
  4. Step 4: Simplify right side
    18,438,870.38x = 259,013,115,713,730.97
  5. Step 5: Solve for x
    x = 259,013,115,713,730.97/18,438,870.38
  6. Step 6: Final answer
    x = 14,047,124.93

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1.5x scale

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.