Home / 84,989,003.40-127,483,505.10-54,378,001.80

Finding the Fourth Proportional to 84,989,003.40, 127,483,505.10 and 54,378,001.80

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Solution

The fourth proportional to 84,989,003.40, 127,483,505.10 and 54,378,001.80 is: 81,567,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,989,003.40 : 127,483,505.10 = 54,378,001.80 : x
  2. Step 2: Convert to fraction form
    84,989,003.40/127,483,505.10 = 54,378,001.80/x
  3. Step 3: Cross multiply
    84,989,003.40x = 127,483,505.10 × 54,378,001.80
  4. Step 4: Simplify right side
    84,989,003.40x = 6,932,298,269,798,108
  5. Step 5: Solve for x
    x = 6,932,298,269,798,108/84,989,003.40
  6. Step 6: Final answer
    x = 81,567,002.70

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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.