Home / 123,700,640.79-170,702,207.31-68,700,040.23

Finding the Fourth Proportional to 123,700,640.79, 170,702,207.31 and 68,700,040.23

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Solution

The fourth proportional to 123,700,640.79, 170,702,207.31 and 68,700,040.23 is: 94,803,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,700,640.79 : 170,702,207.31 = 68,700,040.23 : x
  2. Step 2: Convert to fraction form
    123,700,640.79/170,702,207.31 = 68,700,040.23/x
  3. Step 3: Cross multiply
    123,700,640.79x = 170,702,207.31 × 68,700,040.23
  4. Step 4: Simplify right side
    123,700,640.79x = 11,727,248,509,546,800
  5. Step 5: Solve for x
    x = 11,727,248,509,546,800/123,700,640.79
  6. Step 6: Final answer
    x = 94,803,458.05

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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.