Home / 15,677,982.72-21,634,884.96-8,709,111.96

Finding the Fourth Proportional to 15,677,982.72, 21,634,884.96 and 8,709,111.96

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Solution

The fourth proportional to 15,677,982.72, 21,634,884.96 and 8,709,111.96 is: 12,018,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677,982.72 : 21,634,884.96 = 8,709,111.96 : x
  2. Step 2: Convert to fraction form
    15,677,982.72/21,634,884.96 = 8,709,111.96/x
  3. Step 3: Cross multiply
    15,677,982.72x = 21,634,884.96 × 8,709,111.96
  4. Step 4: Simplify right side
    15,677,982.72x = 188,420,635,358,360.16
  5. Step 5: Solve for x
    x = 188,420,635,358,360.16/15,677,982.72
  6. Step 6: Final answer
    x = 12,018,168.33

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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.