Home / 20,740,495.16-28,617,610.32-11,918,242.41

Finding the Fourth Proportional to 20,740,495.16, 28,617,610.32 and 11,918,242.41

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Solution

The fourth proportional to 20,740,495.16, 28,617,610.32 and 11,918,242.41 is: 16,444,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740,495.16 : 28,617,610.32 = 11,918,242.41 : x
  2. Step 2: Convert to fraction form
    20,740,495.16/28,617,610.32 = 11,918,242.41/x
  3. Step 3: Cross multiply
    20,740,495.16x = 28,617,610.32 × 11,918,242.41
  4. Step 4: Simplify right side
    20,740,495.16x = 341,071,616,988,677.69
  5. Step 5: Solve for x
    x = 341,071,616,988,677.69/20,740,495.16
  6. Step 6: Final answer
    x = 16,444,719.11

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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.