Home / 100,775,375.38-139,041,915.05-64,996,677.06

Finding the Fourth Proportional to 100,775,375.38, 139,041,915.05 and 64,996,677.06

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Solution

The fourth proportional to 100,775,375.38, 139,041,915.05 and 64,996,677.06 is: 89,677,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,775,375.38 : 139,041,915.05 = 64,996,677.06 : x
  2. Step 2: Convert to fraction form
    100,775,375.38/139,041,915.05 = 64,996,677.06/x
  3. Step 3: Cross multiply
    100,775,375.38x = 139,041,915.05 × 64,996,677.06
  4. Step 4: Simplify right side
    100,775,375.38x = 9,037,262,449,949,888
  5. Step 5: Solve for x
    x = 9,037,262,449,949,888/100,775,375.38
  6. Step 6: Final answer
    x = 89,677,288.88

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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.