Home / 12,078,531.75-16,668,373.82-6,646,023.75

Finding the Fourth Proportional to 12,078,531.75, 16,668,373.82 and 6,646,023.75

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Solution

The fourth proportional to 12,078,531.75, 16,668,373.82 and 6,646,023.75 is: 9,171,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,531.75 : 16,668,373.82 = 6,646,023.75 : x
  2. Step 2: Convert to fraction form
    12,078,531.75/16,668,373.82 = 6,646,023.75/x
  3. Step 3: Cross multiply
    12,078,531.75x = 16,668,373.82 × 6,646,023.75
  4. Step 4: Simplify right side
    12,078,531.75x = 110,778,408,248,368.11
  5. Step 5: Solve for x
    x = 110,778,408,248,368.11/12,078,531.75
  6. Step 6: Final answer
    x = 9,171,512.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.