Home / 54,128,751.20-81,193,126.80-52,534,428.20

Finding the Fourth Proportional to 54,128,751.20, 81,193,126.80 and 52,534,428.20

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Solution

The fourth proportional to 54,128,751.20, 81,193,126.80 and 52,534,428.20 is: 78,801,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,751.20 : 81,193,126.80 = 52,534,428.20 : x
  2. Step 2: Convert to fraction form
    54,128,751.20/81,193,126.80 = 52,534,428.20/x
  3. Step 3: Cross multiply
    54,128,751.20x = 81,193,126.80 × 52,534,428.20
  4. Step 4: Simplify right side
    54,128,751.20x = 4,265,434,490,208,096
  5. Step 5: Solve for x
    x = 4,265,434,490,208,096/54,128,751.20
  6. Step 6: Final answer
    x = 78,801,642.30

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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.