Home / 80,171,749.60-120,256,574.64-19,588,000.48

Finding the Fourth Proportional to 80,171,749.60, 120,256,574.64 and 19,588,000.48

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Solution

The fourth proportional to 80,171,749.60, 120,256,574.64 and 19,588,000.48 is: 29,381,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,171,749.60 : 120,256,574.64 = 19,588,000.48 : x
  2. Step 2: Convert to fraction form
    80,171,749.60/120,256,574.64 = 19,588,000.48/x
  3. Step 3: Cross multiply
    80,171,749.60x = 120,256,574.64 × 19,588,000.48
  4. Step 4: Simplify right side
    80,171,749.60x = 2,355,585,841,771,476
  5. Step 5: Solve for x
    x = 2,355,585,841,771,476/80,171,749.60
  6. Step 6: Final answer
    x = 29,381,744.24

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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.