Home / 258,663,156.78-356,901,870.26-148,633,612.14

Finding the Fourth Proportional to 258,663,156.78, 356,901,870.26 and 148,633,612.14

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Solution

The fourth proportional to 258,663,156.78, 356,901,870.26 and 148,633,612.14 is: 205,083,765.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,663,156.78 : 356,901,870.26 = 148,633,612.14 : x
  2. Step 2: Convert to fraction form
    258,663,156.78/356,901,870.26 = 148,633,612.14/x
  3. Step 3: Cross multiply
    258,663,156.78x = 356,901,870.26 × 148,633,612.14
  4. Step 4: Simplify right side
    258,663,156.78x = 53,047,614,156,265,432
  5. Step 5: Solve for x
    x = 53,047,614,156,265,432/258,663,156.78
  6. Step 6: Final answer
    x = 205,083,765.38

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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.