Home / 18,636,979.68-25,718,724.77-10,903,332.15

Finding the Fourth Proportional to 18,636,979.68, 25,718,724.77 and 10,903,332.15

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Solution

The fourth proportional to 18,636,979.68, 25,718,724.77 and 10,903,332.15 is: 15,046,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636,979.68 : 25,718,724.77 = 10,903,332.15 : x
  2. Step 2: Convert to fraction form
    18,636,979.68/25,718,724.77 = 10,903,332.15/x
  3. Step 3: Cross multiply
    18,636,979.68x = 25,718,724.77 × 10,903,332.15
  4. Step 4: Simplify right side
    18,636,979.68x = 280,419,798,587,225.72
  5. Step 5: Solve for x
    x = 280,419,798,587,225.72/18,636,979.68
  6. Step 6: Final answer
    x = 15,046,418.65

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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.