Home / 123,486,478.12-170,405,503.14-68,481,153.64

Finding the Fourth Proportional to 123,486,478.12, 170,405,503.14 and 68,481,153.64

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Solution

The fourth proportional to 123,486,478.12, 170,405,503.14 and 68,481,153.64 is: 94,500,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,486,478.12 : 170,405,503.14 = 68,481,153.64 : x
  2. Step 2: Convert to fraction form
    123,486,478.12/170,405,503.14 = 68,481,153.64/x
  3. Step 3: Cross multiply
    123,486,478.12x = 170,405,503.14 × 68,481,153.64
  4. Step 4: Simplify right side
    123,486,478.12x = 11,669,565,441,631,842
  5. Step 5: Solve for x
    x = 11,669,565,441,631,842/123,486,478.12
  6. Step 6: Final answer
    x = 94,500,755.22

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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.