Home / 20,547,678.71-30,822,956.26-8,251,640.17

Finding the Fourth Proportional to 20,547,678.71, 30,822,956.26 and 8,251,640.17

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Solution

The fourth proportional to 20,547,678.71, 30,822,956.26 and 8,251,640.17 is: 12,378,037.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547,678.71 : 30,822,956.26 = 8,251,640.17 : x
  2. Step 2: Convert to fraction form
    20,547,678.71/30,822,956.26 = 8,251,640.17/x
  3. Step 3: Cross multiply
    20,547,678.71x = 30,822,956.26 × 8,251,640.17
  4. Step 4: Simplify right side
    20,547,678.71x = 254,339,943,935,482.50
  5. Step 5: Solve for x
    x = 254,339,943,935,482.50/20,547,678.71
  6. Step 6: Final answer
    x = 12,378,037.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.