Home / 300,076,748.70-450,115,123.05-84,665,996.70

Finding the Fourth Proportional to 300,076,748.70, 450,115,123.05 and 84,665,996.70

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Solution

The fourth proportional to 300,076,748.70, 450,115,123.05 and 84,665,996.70 is: 126,998,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,076,748.70 : 450,115,123.05 = 84,665,996.70 : x
  2. Step 2: Convert to fraction form
    300,076,748.70/450,115,123.05 = 84,665,996.70/x
  3. Step 3: Cross multiply
    300,076,748.70x = 450,115,123.05 × 84,665,996.70
  4. Step 4: Simplify right side
    300,076,748.70x = 38,109,445,522,771,400
  5. Step 5: Solve for x
    x = 38,109,445,522,771,400/300,076,748.70
  6. Step 6: Final answer
    x = 126,998,995.05

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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.