Home / 817,758,666.34-1,128,491,632.10-500,195,584.53

Finding the Fourth Proportional to 817,758,666.34, 1,128,491,632.10 and 500,195,584.53

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Solution

The fourth proportional to 817,758,666.34, 1,128,491,632.10 and 500,195,584.53 is: 690,260,531.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,758,666.34 : 1,128,491,632.10 = 500,195,584.53 : x
  2. Step 2: Convert to fraction form
    817,758,666.34/1,128,491,632.10 = 500,195,584.53/x
  3. Step 3: Cross multiply
    817,758,666.34x = 1,128,491,632.10 × 500,195,584.53
  4. Step 4: Simplify right side
    817,758,666.34x = 564,466,531,556,723,648
  5. Step 5: Solve for x
    x = 564,466,531,556,723,648/817,758,666.34
  6. Step 6: Final answer
    x = 690,260,531.37

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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.