Home / 85,065,498.60-127,598,247.90-80,586,522.60

Finding the Fourth Proportional to 85,065,498.60, 127,598,247.90 and 80,586,522.60

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Solution

The fourth proportional to 85,065,498.60, 127,598,247.90 and 80,586,522.60 is: 120,879,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,065,498.60 : 127,598,247.90 = 80,586,522.60 : x
  2. Step 2: Convert to fraction form
    85,065,498.60/127,598,247.90 = 80,586,522.60/x
  3. Step 3: Cross multiply
    85,065,498.60x = 127,598,247.90 × 80,586,522.60
  4. Step 4: Simplify right side
    85,065,498.60x = 10,282,699,088,113,752
  5. Step 5: Solve for x
    x = 10,282,699,088,113,752/85,065,498.60
  6. Step 6: Final answer
    x = 120,879,783.90

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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.