Home / 256,250,173.80-353,620,869.22-138,774,549.48

Finding the Fourth Proportional to 256,250,173.80, 353,620,869.22 and 138,774,549.48

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Solution

The fourth proportional to 256,250,173.80, 353,620,869.22 and 138,774,549.48 is: 191,506,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,250,173.80 : 353,620,869.22 = 138,774,549.48 : x
  2. Step 2: Convert to fraction form
    256,250,173.80/353,620,869.22 = 138,774,549.48/x
  3. Step 3: Cross multiply
    256,250,173.80x = 353,620,869.22 × 138,774,549.48
  4. Step 4: Simplify right side
    256,250,173.80x = 49,073,576,812,731,496
  5. Step 5: Solve for x
    x = 49,073,576,812,731,496/256,250,173.80
  6. Step 6: Final answer
    x = 191,506,511.33

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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.