Home / 18,701,920.25-25,808,405.49-10,442,123.12

Finding the Fourth Proportional to 18,701,920.25, 25,808,405.49 and 10,442,123.12

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Solution

The fourth proportional to 18,701,920.25, 25,808,405.49 and 10,442,123.12 is: 14,409,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701,920.25 : 25,808,405.49 = 10,442,123.12 : x
  2. Step 2: Convert to fraction form
    18,701,920.25/25,808,405.49 = 10,442,123.12/x
  3. Step 3: Cross multiply
    18,701,920.25x = 25,808,405.49 × 10,442,123.12
  4. Step 4: Simplify right side
    18,701,920.25x = 269,494,547,631,242.59
  5. Step 5: Solve for x
    x = 269,494,547,631,242.59/18,701,920.25
  6. Step 6: Final answer
    x = 14,409,993.42

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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.