Home / 140,002,316.63-193,203,215.86-77,278,426.43

Finding the Fourth Proportional to 140,002,316.63, 193,203,215.86 and 77,278,426.43

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Solution

The fourth proportional to 140,002,316.63, 193,203,215.86 and 77,278,426.43 is: 106,644,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,002,316.63 : 193,203,215.86 = 77,278,426.43 : x
  2. Step 2: Convert to fraction form
    140,002,316.63/193,203,215.86 = 77,278,426.43/x
  3. Step 3: Cross multiply
    140,002,316.63x = 193,203,215.86 × 77,278,426.43
  4. Step 4: Simplify right side
    140,002,316.63x = 14,930,440,502,876,422
  5. Step 5: Solve for x
    x = 14,930,440,502,876,422/140,002,316.63
  6. Step 6: Final answer
    x = 106,644,238.91

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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.