Home / 20,740,511.19-28,617,632.30-11,918,258.43

Finding the Fourth Proportional to 20,740,511.19, 28,617,632.30 and 11,918,258.43

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Solution

The fourth proportional to 20,740,511.19, 28,617,632.30 and 11,918,258.43 is: 16,444,741.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740,511.19 : 28,617,632.30 = 11,918,258.43 : x
  2. Step 2: Convert to fraction form
    20,740,511.19/28,617,632.30 = 11,918,258.43/x
  3. Step 3: Cross multiply
    20,740,511.19x = 28,617,632.30 × 11,918,258.43
  4. Step 4: Simplify right side
    20,740,511.19x = 341,072,337,346,524
  5. Step 5: Solve for x
    x = 341,072,337,346,524/20,740,511.19
  6. Step 6: Final answer
    x = 16,444,741.13

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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.