Home / 86,933,863.20-130,400,794.80-80,364,698.40

Finding the Fourth Proportional to 86,933,863.20, 130,400,794.80 and 80,364,698.40

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Solution

The fourth proportional to 86,933,863.20, 130,400,794.80 and 80,364,698.40 is: 120,547,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933,863.20 : 130,400,794.80 = 80,364,698.40 : x
  2. Step 2: Convert to fraction form
    86,933,863.20/130,400,794.80 = 80,364,698.40/x
  3. Step 3: Cross multiply
    86,933,863.20x = 130,400,794.80 × 80,364,698.40
  4. Step 4: Simplify right side
    86,933,863.20x = 10,479,620,545,222,288
  5. Step 5: Solve for x
    x = 10,479,620,545,222,288/86,933,863.20
  6. Step 6: Final answer
    x = 120,547,047.60

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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.