Home / 10,915,960.96-15,068,176.32-8,207,574.40

Finding the Fourth Proportional to 10,915,960.96, 15,068,176.32 and 8,207,574.40

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Solution

The fourth proportional to 10,915,960.96, 15,068,176.32 and 8,207,574.40 is: 11,329,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915,960.96 : 15,068,176.32 = 8,207,574.40 : x
  2. Step 2: Convert to fraction form
    10,915,960.96/15,068,176.32 = 8,207,574.40/x
  3. Step 3: Cross multiply
    10,915,960.96x = 15,068,176.32 × 8,207,574.40
  4. Step 4: Simplify right side
    10,915,960.96x = 123,673,178,218,718.22
  5. Step 5: Solve for x
    x = 123,673,178,218,718.22/10,915,960.96
  6. Step 6: Final answer
    x = 11,329,573.15

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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.