Home / 256,918,699.53-354,548,870.15-139,444,198.65

Finding the Fourth Proportional to 256,918,699.53, 354,548,870.15 and 139,444,198.65

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Solution

The fourth proportional to 256,918,699.53, 354,548,870.15 and 139,444,198.65 is: 192,433,572.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,918,699.53 : 354,548,870.15 = 139,444,198.65 : x
  2. Step 2: Convert to fraction form
    256,918,699.53/354,548,870.15 = 139,444,198.65/x
  3. Step 3: Cross multiply
    256,918,699.53x = 354,548,870.15 × 139,444,198.65
  4. Step 4: Simplify right side
    256,918,699.53x = 49,439,783,079,632,432
  5. Step 5: Solve for x
    x = 49,439,783,079,632,432/256,918,699.53
  6. Step 6: Final answer
    x = 192,433,572.06

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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.