Home / 12,132,151,408.10-18,206,675,029.02-4,272,196,820.78

Finding the Fourth Proportional to 12,132,151,408.10, 18,206,675,029.02 and 4,272,196,820.78

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Solution

The fourth proportional to 12,132,151,408.10, 18,206,675,029.02 and 4,272,196,820.78 is: 6,411,270,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132,151,408.10 : 18,206,675,029.02 = 4,272,196,820.78 : x
  2. Step 2: Convert to fraction form
    12,132,151,408.10/18,206,675,029.02 = 4,272,196,820.78/x
  3. Step 3: Cross multiply
    12,132,151,408.10x = 18,206,675,029.02 × 4,272,196,820.78
  4. Step 4: Simplify right side
    12,132,151,408.10x = 77,782,499,175,953,858,560
  5. Step 5: Solve for x
    x = 77,782,499,175,953,858,560/12,132,151,408.10
  6. Step 6: Final answer
    x = 6,411,270,067.40

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1.5x scale

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.