Home / 85,536,016.40-128,304,024.60-83,835,405.20

Finding the Fourth Proportional to 85,536,016.40, 128,304,024.60 and 83,835,405.20

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Solution

The fourth proportional to 85,536,016.40, 128,304,024.60 and 83,835,405.20 is: 125,753,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,016.40 : 128,304,024.60 = 83,835,405.20 : x
  2. Step 2: Convert to fraction form
    85,536,016.40/128,304,024.60 = 83,835,405.20/x
  3. Step 3: Cross multiply
    85,536,016.40x = 128,304,024.60 × 83,835,405.20
  4. Step 4: Simplify right side
    85,536,016.40x = 10,756,419,891,131,768
  5. Step 5: Solve for x
    x = 10,756,419,891,131,768/85,536,016.40
  6. Step 6: Final answer
    x = 125,753,107.80

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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.