Home / 256,127,016.85-353,456,411.27-138,652,347.09

Finding the Fourth Proportional to 256,127,016.85, 353,456,411.27 and 138,652,347.09

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Solution

The fourth proportional to 256,127,016.85, 353,456,411.27 and 138,652,347.09 is: 191,340,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,127,016.85 : 353,456,411.27 = 138,652,347.09 : x
  2. Step 2: Convert to fraction form
    256,127,016.85/353,456,411.27 = 138,652,347.09/x
  3. Step 3: Cross multiply
    256,127,016.85x = 353,456,411.27 × 138,652,347.09
  4. Step 4: Simplify right side
    256,127,016.85x = 49,007,561,017,528,248
  5. Step 5: Solve for x
    x = 49,007,561,017,528,248/256,127,016.85
  6. Step 6: Final answer
    x = 191,340,849.63

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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.