Home / 123,386,828.40-170,273,839.32-68,386,235.76

Finding the Fourth Proportional to 123,386,828.40, 170,273,839.32 and 68,386,235.76

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Solution

The fourth proportional to 123,386,828.40, 170,273,839.32 and 68,386,235.76 is: 94,373,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,386,828.40 : 170,273,839.32 = 68,386,235.76 : x
  2. Step 2: Convert to fraction form
    123,386,828.40/170,273,839.32 = 68,386,235.76/x
  3. Step 3: Cross multiply
    123,386,828.40x = 170,273,839.32 × 68,386,235.76
  4. Step 4: Simplify right side
    123,386,828.40x = 11,644,386,919,497,878
  5. Step 5: Solve for x
    x = 11,644,386,919,497,878/123,386,828.40
  6. Step 6: Final answer
    x = 94,373,014.29

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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.