Home / 75,451,751.70-113,177,627.55-72,581,970.30

Finding the Fourth Proportional to 75,451,751.70, 113,177,627.55 and 72,581,970.30

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Solution

The fourth proportional to 75,451,751.70, 113,177,627.55 and 72,581,970.30 is: 108,872,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,451,751.70 : 113,177,627.55 = 72,581,970.30 : x
  2. Step 2: Convert to fraction form
    75,451,751.70/113,177,627.55 = 72,581,970.30/x
  3. Step 3: Cross multiply
    75,451,751.70x = 113,177,627.55 × 72,581,970.30
  4. Step 4: Simplify right side
    75,451,751.70x = 8,214,655,201,458,561
  5. Step 5: Solve for x
    x = 8,214,655,201,458,561/75,451,751.70
  6. Step 6: Final answer
    x = 108,872,955.45

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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.