Home / 88,128,002.80-132,192,004.20-86,336,412.40

Finding the Fourth Proportional to 88,128,002.80, 132,192,004.20 and 86,336,412.40

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Solution

The fourth proportional to 88,128,002.80, 132,192,004.20 and 86,336,412.40 is: 129,504,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,128,002.80 : 132,192,004.20 = 86,336,412.40 : x
  2. Step 2: Convert to fraction form
    88,128,002.80/132,192,004.20 = 86,336,412.40/x
  3. Step 3: Cross multiply
    88,128,002.80x = 132,192,004.20 × 86,336,412.40
  4. Step 4: Simplify right side
    88,128,002.80x = 11,412,983,390,593,734
  5. Step 5: Solve for x
    x = 11,412,983,390,593,734/88,128,002.80
  6. Step 6: Final answer
    x = 129,504,618.60

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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.