Home / 256,921,566.50-354,552,151.38-139,446,939.66

Finding the Fourth Proportional to 256,921,566.50, 354,552,151.38 and 139,446,939.66

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Solution

The fourth proportional to 256,921,566.50, 354,552,151.38 and 139,446,939.66 is: 192,436,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,921,566.50 : 354,552,151.38 = 139,446,939.66 : x
  2. Step 2: Convert to fraction form
    256,921,566.50/354,552,151.38 = 139,446,939.66/x
  3. Step 3: Cross multiply
    256,921,566.50x = 354,552,151.38 × 139,446,939.66
  4. Step 4: Simplify right side
    256,921,566.50x = 49,441,212,459,810,040
  5. Step 5: Solve for x
    x = 49,441,212,459,810,040/256,921,566.50
  6. Step 6: Final answer
    x = 192,436,988.20

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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.