Home / 15,338,985.76-21,168,243.28-8,463,910.68

Finding the Fourth Proportional to 15,338,985.76, 21,168,243.28 and 8,463,910.68

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Solution

The fourth proportional to 15,338,985.76, 21,168,243.28 and 8,463,910.68 is: 11,680,441.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,985.76 : 21,168,243.28 = 8,463,910.68 : x
  2. Step 2: Convert to fraction form
    15,338,985.76/21,168,243.28 = 8,463,910.68/x
  3. Step 3: Cross multiply
    15,338,985.76x = 21,168,243.28 × 8,463,910.68
  4. Step 4: Simplify right side
    15,338,985.76x = 179,166,120,374,430.22
  5. Step 5: Solve for x
    x = 179,166,120,374,430.22/15,338,985.76
  6. Step 6: Final answer
    x = 11,680,441.14

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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.