Home / 311,865,163,613.92-430,376,452,728.90-172,818,767,947.97

Finding the Fourth Proportional to 311,865,163,613.92, 430,376,452,728.90 and 172,818,767,947.97

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Solution

The fourth proportional to 311,865,163,613.92, 430,376,452,728.90 and 172,818,767,947.97 is: 238,491,300,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,865,163,613.92 : 430,376,452,728.90 = 172,818,767,947.97 : x
  2. Step 2: Convert to fraction form
    311,865,163,613.92/430,376,452,728.90 = 172,818,767,947.97/x
  3. Step 3: Cross multiply
    311,865,163,613.92x = 430,376,452,728.90 × 172,818,767,947.97
  4. Step 4: Simplify right side
    311,865,163,613.92x = 74,377,128,314,426,254,950,400
  5. Step 5: Solve for x
    x = 74,377,128,314,426,254,950,400/311,865,163,613.92
  6. Step 6: Final answer
    x = 238,491,300,062.30

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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.