Home / 13,537,117.60-20,305,676.40-12,939,920.80

Finding the Fourth Proportional to 13,537,117.60, 20,305,676.40 and 12,939,920.80

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Solution

The fourth proportional to 13,537,117.60, 20,305,676.40 and 12,939,920.80 is: 19,409,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537,117.60 : 20,305,676.40 = 12,939,920.80 : x
  2. Step 2: Convert to fraction form
    13,537,117.60/20,305,676.40 = 12,939,920.80/x
  3. Step 3: Cross multiply
    13,537,117.60x = 20,305,676.40 × 12,939,920.80
  4. Step 4: Simplify right side
    13,537,117.60x = 262,753,844,406,429.12
  5. Step 5: Solve for x
    x = 262,753,844,406,429.12/13,537,117.60
  6. Step 6: Final answer
    x = 19,409,881.20

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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.