Home / 12,358,103.60-18,537,155.40-11,854,218.80

Finding the Fourth Proportional to 12,358,103.60, 18,537,155.40 and 11,854,218.80

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Solution

The fourth proportional to 12,358,103.60, 18,537,155.40 and 11,854,218.80 is: 17,781,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,103.60 : 18,537,155.40 = 11,854,218.80 : x
  2. Step 2: Convert to fraction form
    12,358,103.60/18,537,155.40 = 11,854,218.80/x
  3. Step 3: Cross multiply
    12,358,103.60x = 18,537,155.40 × 11,854,218.80
  4. Step 4: Simplify right side
    12,358,103.60x = 219,743,496,041,201.53
  5. Step 5: Solve for x
    x = 219,743,496,041,201.53/12,358,103.60
  6. Step 6: Final answer
    x = 17,781,328.20

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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.