Home / 80,130,785.80-120,196,178.70-19,546,511.80

Finding the Fourth Proportional to 80,130,785.80, 120,196,178.70 and 19,546,511.80

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Solution

The fourth proportional to 80,130,785.80, 120,196,178.70 and 19,546,511.80 is: 29,319,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,130,785.80 : 120,196,178.70 = 19,546,511.80 : x
  2. Step 2: Convert to fraction form
    80,130,785.80/120,196,178.70 = 19,546,511.80/x
  3. Step 3: Cross multiply
    80,130,785.80x = 120,196,178.70 × 19,546,511.80
  4. Step 4: Simplify right side
    80,130,785.80x = 2,349,416,025,274,459
  5. Step 5: Solve for x
    x = 2,349,416,025,274,459/80,130,785.80
  6. Step 6: Final answer
    x = 29,319,767.70

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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.