Home / 80,749,686,952.20-121,124,530,428.30-54,301,781,569.80

Finding the Fourth Proportional to 80,749,686,952.20, 121,124,530,428.30 and 54,301,781,569.80

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Solution

The fourth proportional to 80,749,686,952.20, 121,124,530,428.30 and 54,301,781,569.80 is: 81,452,672,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749,686,952.20 : 121,124,530,428.30 = 54,301,781,569.80 : x
  2. Step 2: Convert to fraction form
    80,749,686,952.20/121,124,530,428.30 = 54,301,781,569.80/x
  3. Step 3: Cross multiply
    80,749,686,952.20x = 121,124,530,428.30 × 54,301,781,569.80
  4. Step 4: Simplify right side
    80,749,686,952.20x = 6,577,277,794,062,140,702,720
  5. Step 5: Solve for x
    x = 6,577,277,794,062,140,702,720/80,749,686,952.20
  6. Step 6: Final answer
    x = 81,452,672,354.70

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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.