Home / 431,072,966.92-647,018,246.46-266,813,855.24

Finding the Fourth Proportional to 431,072,966.92, 647,018,246.46 and 266,813,855.24

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Solution

The fourth proportional to 431,072,966.92, 647,018,246.46 and 266,813,855.24 is: 400,473,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,072,966.92 : 647,018,246.46 = 266,813,855.24 : x
  2. Step 2: Convert to fraction form
    431,072,966.92/647,018,246.46 = 266,813,855.24/x
  3. Step 3: Cross multiply
    431,072,966.92x = 647,018,246.46 × 266,813,855.24
  4. Step 4: Simplify right side
    431,072,966.92x = 172,633,432,748,617,088
  5. Step 5: Solve for x
    x = 172,633,432,748,617,088/431,072,966.92
  6. Step 6: Final answer
    x = 400,473,808.37

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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.