Home / 258,663,045.42-356,901,716.84-148,633,500.78

Finding the Fourth Proportional to 258,663,045.42, 356,901,716.84 and 148,633,500.78

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Solution

The fourth proportional to 258,663,045.42, 356,901,716.84 and 148,633,500.78 is: 205,083,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,663,045.42 : 356,901,716.84 = 148,633,500.78 : x
  2. Step 2: Convert to fraction form
    258,663,045.42/356,901,716.84 = 148,633,500.78/x
  3. Step 3: Cross multiply
    258,663,045.42x = 356,901,716.84 × 148,633,500.78
  4. Step 4: Simplify right side
    258,663,045.42x = 53,047,551,607,578,312
  5. Step 5: Solve for x
    x = 53,047,551,607,578,312/258,663,045.42
  6. Step 6: Final answer
    x = 205,083,611.85

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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.