Home / 74,278,928.80-111,418,393.20-57,272,816.80

Finding the Fourth Proportional to 74,278,928.80, 111,418,393.20 and 57,272,816.80

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Solution

The fourth proportional to 74,278,928.80, 111,418,393.20 and 57,272,816.80 is: 85,909,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,278,928.80 : 111,418,393.20 = 57,272,816.80 : x
  2. Step 2: Convert to fraction form
    74,278,928.80/111,418,393.20 = 57,272,816.80/x
  3. Step 3: Cross multiply
    74,278,928.80x = 111,418,393.20 × 57,272,816.80
  4. Step 4: Simplify right side
    74,278,928.80x = 6,381,245,221,893,966
  5. Step 5: Solve for x
    x = 6,381,245,221,893,966/74,278,928.80
  6. Step 6: Final answer
    x = 85,909,225.20

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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.