Home / 80,749,686,870.20-121,124,530,305.30-54,301,781,487.80

Finding the Fourth Proportional to 80,749,686,870.20, 121,124,530,305.30 and 54,301,781,487.80

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Solution

The fourth proportional to 80,749,686,870.20, 121,124,530,305.30 and 54,301,781,487.80 is: 81,452,672,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749,686,870.20 : 121,124,530,305.30 = 54,301,781,487.80 : x
  2. Step 2: Convert to fraction form
    80,749,686,870.20/121,124,530,305.30 = 54,301,781,487.80/x
  3. Step 3: Cross multiply
    80,749,686,870.20x = 121,124,530,305.30 × 54,301,781,487.80
  4. Step 4: Simplify right side
    80,749,686,870.20x = 6,577,277,777,450,810,474,496
  5. Step 5: Solve for x
    x = 6,577,277,777,450,810,474,496/80,749,686,870.20
  6. Step 6: Final answer
    x = 81,452,672,231.70

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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.