Home / 112,766,800.40-169,150,200.60-78,754,576.40

Finding the Fourth Proportional to 112,766,800.40, 169,150,200.60 and 78,754,576.40

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Solution

The fourth proportional to 112,766,800.40, 169,150,200.60 and 78,754,576.40 is: 118,131,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,766,800.40 : 169,150,200.60 = 78,754,576.40 : x
  2. Step 2: Convert to fraction form
    112,766,800.40/169,150,200.60 = 78,754,576.40/x
  3. Step 3: Cross multiply
    112,766,800.40x = 169,150,200.60 × 78,754,576.40
  4. Step 4: Simplify right side
    112,766,800.40x = 13,321,352,396,228,026
  5. Step 5: Solve for x
    x = 13,321,352,396,228,026/112,766,800.40
  6. Step 6: Final answer
    x = 118,131,864.60

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1.5x scale

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.