Home / 147,822,244.78-203,996,019.55-81,747,188.80

Finding the Fourth Proportional to 147,822,244.78, 203,996,019.55 and 81,747,188.80

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Solution

The fourth proportional to 147,822,244.78, 203,996,019.55 and 81,747,188.80 is: 112,811,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,822,244.78 : 203,996,019.55 = 81,747,188.80 : x
  2. Step 2: Convert to fraction form
    147,822,244.78/203,996,019.55 = 81,747,188.80/x
  3. Step 3: Cross multiply
    147,822,244.78x = 203,996,019.55 × 81,747,188.80
  4. Step 4: Simplify right side
    147,822,244.78x = 16,676,101,123,887,984
  5. Step 5: Solve for x
    x = 16,676,101,123,887,984/147,822,244.78
  6. Step 6: Final answer
    x = 112,811,851.48

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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.