Home / 79,776,040.80-119,580,080.40-31,235,138.40

Finding the Fourth Proportional to 79,776,040.80, 119,580,080.40 and 31,235,138.40

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Solution

The fourth proportional to 79,776,040.80, 119,580,080.40 and 31,235,138.40 is: 46,819,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,776,040.80 : 119,580,080.40 = 31,235,138.40 : x
  2. Step 2: Convert to fraction form
    79,776,040.80/119,580,080.40 = 31,235,138.40/x
  3. Step 3: Cross multiply
    79,776,040.80x = 119,580,080.40 × 31,235,138.40
  4. Step 4: Simplify right side
    79,776,040.80x = 3,735,100,361,177,127.50
  5. Step 5: Solve for x
    x = 3,735,100,361,177,127.50/79,776,040.80
  6. Step 6: Final answer
    x = 46,819,826.15

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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.