Home / 688,305,123.66-949,849,111.26-375,041,911.80

Finding the Fourth Proportional to 688,305,123.66, 949,849,111.26 and 375,041,911.80

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Solution

The fourth proportional to 688,305,123.66, 949,849,111.26 and 375,041,911.80 is: 517,551,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,305,123.66 : 949,849,111.26 = 375,041,911.80 : x
  2. Step 2: Convert to fraction form
    688,305,123.66/949,849,111.26 = 375,041,911.80/x
  3. Step 3: Cross multiply
    688,305,123.66x = 949,849,111.26 × 375,041,911.80
  4. Step 4: Simplify right side
    688,305,123.66x = 356,233,226,608,481,344
  5. Step 5: Solve for x
    x = 356,233,226,608,481,344/688,305,123.66
  6. Step 6: Final answer
    x = 517,551,321.88

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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.