Home / 80,520,119.60-120,780,179.40-19,935,846.32

Finding the Fourth Proportional to 80,520,119.60, 120,780,179.40 and 19,935,846.32

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Solution

The fourth proportional to 80,520,119.60, 120,780,179.40 and 19,935,846.32 is: 29,903,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520,119.60 : 120,780,179.40 = 19,935,846.32 : x
  2. Step 2: Convert to fraction form
    80,520,119.60/120,780,179.40 = 19,935,846.32/x
  3. Step 3: Cross multiply
    80,520,119.60x = 120,780,179.40 × 19,935,846.32
  4. Step 4: Simplify right side
    80,520,119.60x = 2,407,855,095,020,430
  5. Step 5: Solve for x
    x = 2,407,855,095,020,430/80,520,119.60
  6. Step 6: Final answer
    x = 29,903,769.48

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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.