Home / 83,268,017.20-124,902,025.80-74,339,808.40

Finding the Fourth Proportional to 83,268,017.20, 124,902,025.80 and 74,339,808.40

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Solution

The fourth proportional to 83,268,017.20, 124,902,025.80 and 74,339,808.40 is: 111,509,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,268,017.20 : 124,902,025.80 = 74,339,808.40 : x
  2. Step 2: Convert to fraction form
    83,268,017.20/124,902,025.80 = 74,339,808.40/x
  3. Step 3: Cross multiply
    83,268,017.20x = 124,902,025.80 × 74,339,808.40
  4. Step 4: Simplify right side
    83,268,017.20x = 9,285,192,666,743,858
  5. Step 5: Solve for x
    x = 9,285,192,666,743,858/83,268,017.20
  6. Step 6: Final answer
    x = 111,509,712.60

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Similar ratio
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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.