Home / 92,895,561.78-128,006,979.44-71,859,853.54

Finding the Fourth Proportional to 92,895,561.78, 128,006,979.44 and 71,859,853.54

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Solution

The fourth proportional to 92,895,561.78, 128,006,979.44 and 71,859,853.54 is: 99,020,476.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,895,561.78 : 128,006,979.44 = 71,859,853.54 : x
  2. Step 2: Convert to fraction form
    92,895,561.78/128,006,979.44 = 71,859,853.54/x
  3. Step 3: Cross multiply
    92,895,561.78x = 128,006,979.44 × 71,859,853.54
  4. Step 4: Simplify right side
    92,895,561.78x = 9,198,562,794,656,192
  5. Step 5: Solve for x
    x = 9,198,562,794,656,192/92,895,561.78
  6. Step 6: Final answer
    x = 99,020,476.53

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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.