Home / 80,640,287.40-120,960,431.10-26,787,599.40

Finding the Fourth Proportional to 80,640,287.40, 120,960,431.10 and 26,787,599.40

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Solution

The fourth proportional to 80,640,287.40, 120,960,431.10 and 26,787,599.40 is: 40,181,399.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,640,287.40 : 120,960,431.10 = 26,787,599.40 : x
  2. Step 2: Convert to fraction form
    80,640,287.40/120,960,431.10 = 26,787,599.40/x
  3. Step 3: Cross multiply
    80,640,287.40x = 120,960,431.10 × 26,787,599.40
  4. Step 4: Simplify right side
    80,640,287.40x = 3,240,239,571,558,101
  5. Step 5: Solve for x
    x = 3,240,239,571,558,101/80,640,287.40
  6. Step 6: Final answer
    x = 40,181,399.10

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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.