Home / 253,235,642.09-379,785,123.02-89,451,837.20

Finding the Fourth Proportional to 253,235,642.09, 379,785,123.02 and 89,451,837.20

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Solution

The fourth proportional to 253,235,642.09, 379,785,123.02 and 89,451,837.20 is: 134,153,615.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,235,642.09 : 379,785,123.02 = 89,451,837.20 : x
  2. Step 2: Convert to fraction form
    253,235,642.09/379,785,123.02 = 89,451,837.20/x
  3. Step 3: Cross multiply
    253,235,642.09x = 379,785,123.02 × 89,451,837.20
  4. Step 4: Simplify right side
    253,235,642.09x = 33,972,476,996,540,104
  5. Step 5: Solve for x
    x = 33,972,476,996,540,104/253,235,642.09
  6. Step 6: Final answer
    x = 134,153,615.65

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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.