Home / 127,415,106.56-175,847,774.64-72,419,229.92

Finding the Fourth Proportional to 127,415,106.56, 175,847,774.64 and 72,419,229.92

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Solution

The fourth proportional to 127,415,106.56, 175,847,774.64 and 72,419,229.92 is: 99,947,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,415,106.56 : 175,847,774.64 = 72,419,229.92 : x
  2. Step 2: Convert to fraction form
    127,415,106.56/175,847,774.64 = 72,419,229.92/x
  3. Step 3: Cross multiply
    127,415,106.56x = 175,847,774.64 × 72,419,229.92
  4. Step 4: Simplify right side
    127,415,106.56x = 12,734,760,422,574,504
  5. Step 5: Solve for x
    x = 12,734,760,422,574,504/127,415,106.56
  6. Step 6: Final answer
    x = 99,947,021.72

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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.