Home / 83,040,272.20-124,560,408.30-78,337,347.40

Finding the Fourth Proportional to 83,040,272.20, 124,560,408.30 and 78,337,347.40

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Solution

The fourth proportional to 83,040,272.20, 124,560,408.30 and 78,337,347.40 is: 117,506,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,040,272.20 : 124,560,408.30 = 78,337,347.40 : x
  2. Step 2: Convert to fraction form
    83,040,272.20/124,560,408.30 = 78,337,347.40/x
  3. Step 3: Cross multiply
    83,040,272.20x = 124,560,408.30 × 78,337,347.40
  4. Step 4: Simplify right side
    83,040,272.20x = 9,757,731,977,282,944
  5. Step 5: Solve for x
    x = 9,757,731,977,282,944/83,040,272.20
  6. Step 6: Final answer
    x = 117,506,021.10

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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.