Home / 12,381,605.60-18,572,408.40-9,358,296.80

Finding the Fourth Proportional to 12,381,605.60, 18,572,408.40 and 9,358,296.80

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Solution

The fourth proportional to 12,381,605.60, 18,572,408.40 and 9,358,296.80 is: 14,037,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,605.60 : 18,572,408.40 = 9,358,296.80 : x
  2. Step 2: Convert to fraction form
    12,381,605.60/18,572,408.40 = 9,358,296.80/x
  3. Step 3: Cross multiply
    12,381,605.60x = 18,572,408.40 × 9,358,296.80
  4. Step 4: Simplify right side
    12,381,605.60x = 173,806,110,098,013.12
  5. Step 5: Solve for x
    x = 173,806,110,098,013.12/12,381,605.60
  6. Step 6: Final answer
    x = 14,037,445.20

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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.