Home / 12,408,045.83-18,612,068.74-9,219,399.83

Finding the Fourth Proportional to 12,408,045.83, 18,612,068.74 and 9,219,399.83

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Solution

The fourth proportional to 12,408,045.83, 18,612,068.74 and 9,219,399.83 is: 13,829,099.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408,045.83 : 18,612,068.74 = 9,219,399.83 : x
  2. Step 2: Convert to fraction form
    12,408,045.83/18,612,068.74 = 9,219,399.83/x
  3. Step 3: Cross multiply
    12,408,045.83x = 18,612,068.74 × 9,219,399.83
  4. Step 4: Simplify right side
    12,408,045.83x = 171,592,103,261,395.47
  5. Step 5: Solve for x
    x = 171,592,103,261,395.47/12,408,045.83
  6. Step 6: Final answer
    x = 13,829,099.74

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Double scale
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Similar ratio
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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.