Home / 80,749,686,947.70-121,124,530,421.55-54,301,781,565.30

Finding the Fourth Proportional to 80,749,686,947.70, 121,124,530,421.55 and 54,301,781,565.30

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Solution

The fourth proportional to 80,749,686,947.70, 121,124,530,421.55 and 54,301,781,565.30 is: 81,452,672,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749,686,947.70 : 121,124,530,421.55 = 54,301,781,565.30 : x
  2. Step 2: Convert to fraction form
    80,749,686,947.70/121,124,530,421.55 = 54,301,781,565.30/x
  3. Step 3: Cross multiply
    80,749,686,947.70x = 121,124,530,421.55 × 54,301,781,565.30
  4. Step 4: Simplify right side
    80,749,686,947.70x = 6,577,277,793,150,543,331,328
  5. Step 5: Solve for x
    x = 6,577,277,793,150,543,331,328/80,749,686,947.70
  6. Step 6: Final answer
    x = 81,452,672,347.95

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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.