Home / 79,873,340.80-119,810,011.20-39,475,465.60

Finding the Fourth Proportional to 79,873,340.80, 119,810,011.20 and 39,475,465.60

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Solution

The fourth proportional to 79,873,340.80, 119,810,011.20 and 39,475,465.60 is: 59,213,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,873,340.80 : 119,810,011.20 = 39,475,465.60 : x
  2. Step 2: Convert to fraction form
    79,873,340.80/119,810,011.20 = 39,475,465.60/x
  3. Step 3: Cross multiply
    79,873,340.80x = 119,810,011.20 × 39,475,465.60
  4. Step 4: Simplify right side
    79,873,340.80x = 4,729,555,975,661,215
  5. Step 5: Solve for x
    x = 4,729,555,975,661,215/79,873,340.80
  6. Step 6: Final answer
    x = 59,213,198.40

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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.