Home / 19,616,861.40-29,355,308.10-12,431,837.40

Finding the Fourth Proportional to 19,616,861.40, 29,355,308.10 and 12,431,837.40

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Solution

The fourth proportional to 19,616,861.40, 29,355,308.10 and 12,431,837.40 is: 18,603,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616,861.40 : 29,355,308.10 = 12,431,837.40 : x
  2. Step 2: Convert to fraction form
    19,616,861.40/29,355,308.10 = 12,431,837.40/x
  3. Step 3: Cross multiply
    19,616,861.40x = 29,355,308.10 × 12,431,837.40
  4. Step 4: Simplify right side
    19,616,861.40x = 364,940,417,126,103
  5. Step 5: Solve for x
    x = 364,940,417,126,103/19,616,861.40
  6. Step 6: Final answer
    x = 18,603,404.98

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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.