Home / 439,726,885.66-606,820,896.88-238,781,965.05

Finding the Fourth Proportional to 439,726,885.66, 606,820,896.88 and 238,781,965.05

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Solution

The fourth proportional to 439,726,885.66, 606,820,896.88 and 238,781,965.05 is: 329,517,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,726,885.66 : 606,820,896.88 = 238,781,965.05 : x
  2. Step 2: Convert to fraction form
    439,726,885.66/606,820,896.88 = 238,781,965.05/x
  3. Step 3: Cross multiply
    439,726,885.66x = 606,820,896.88 × 238,781,965.05
  4. Step 4: Simplify right side
    439,726,885.66x = 144,897,886,190,409,824
  5. Step 5: Solve for x
    x = 144,897,886,190,409,824/439,726,885.66
  6. Step 6: Final answer
    x = 329,517,914.22

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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.