Home / 96,793,989.20-145,190,983.80-86,212,408.40

Finding the Fourth Proportional to 96,793,989.20, 145,190,983.80 and 86,212,408.40

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Solution

The fourth proportional to 96,793,989.20, 145,190,983.80 and 86,212,408.40 is: 129,318,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,793,989.20 : 145,190,983.80 = 86,212,408.40 : x
  2. Step 2: Convert to fraction form
    96,793,989.20/145,190,983.80 = 86,212,408.40/x
  3. Step 3: Cross multiply
    96,793,989.20x = 145,190,983.80 × 86,212,408.40
  4. Step 4: Simplify right side
    96,793,989.20x = 12,517,264,391,363,386
  5. Step 5: Solve for x
    x = 12,517,264,391,363,386/96,793,989.20
  6. Step 6: Final answer
    x = 129,318,612.60

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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.