Home / 78,947,500.56-118,396,065.77-27,119,605.66

Finding the Fourth Proportional to 78,947,500.56, 118,396,065.77 and 27,119,605.66

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Solution

The fourth proportional to 78,947,500.56, 118,396,065.77 and 27,119,605.66 is: 40,670,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,947,500.56 : 118,396,065.77 = 27,119,605.66 : x
  2. Step 2: Convert to fraction form
    78,947,500.56/118,396,065.77 = 27,119,605.66/x
  3. Step 3: Cross multiply
    78,947,500.56x = 118,396,065.77 × 27,119,605.66
  4. Step 4: Simplify right side
    78,947,500.56x = 3,210,854,615,367,201
  5. Step 5: Solve for x
    x = 3,210,854,615,367,201/78,947,500.56
  6. Step 6: Final answer
    x = 40,670,757.05

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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.