Home / 123,288,849.84-170,074,108.38-76,230,880.68

Finding the Fourth Proportional to 123,288,849.84, 170,074,108.38 and 76,230,880.68

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Solution

The fourth proportional to 123,288,849.84, 170,074,108.38 and 76,230,880.68 is: 105,158,731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,288,849.84 : 170,074,108.38 = 76,230,880.68 : x
  2. Step 2: Convert to fraction form
    123,288,849.84/170,074,108.38 = 76,230,880.68/x
  3. Step 3: Cross multiply
    123,288,849.84x = 170,074,108.38 × 76,230,880.68
  4. Step 4: Simplify right side
    123,288,849.84x = 12,964,899,062,673,168
  5. Step 5: Solve for x
    x = 12,964,899,062,673,168/123,288,849.84
  6. Step 6: Final answer
    x = 105,158,731.54

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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.