Home / 85,065,209.60-127,597,814.40-80,586,233.60

Finding the Fourth Proportional to 85,065,209.60, 127,597,814.40 and 80,586,233.60

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Solution

The fourth proportional to 85,065,209.60, 127,597,814.40 and 80,586,233.60 is: 120,879,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,065,209.60 : 127,597,814.40 = 80,586,233.60 : x
  2. Step 2: Convert to fraction form
    85,065,209.60/127,597,814.40 = 80,586,233.60/x
  3. Step 3: Cross multiply
    85,065,209.60x = 127,597,814.40 × 80,586,233.60
  4. Step 4: Simplify right side
    85,065,209.60x = 10,282,627,278,087,844
  5. Step 5: Solve for x
    x = 10,282,627,278,087,844/85,065,209.60
  6. Step 6: Final answer
    x = 120,879,350.40

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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.