Home / 279,659,269.60-385,952,776.40-154,236,002.16

Finding the Fourth Proportional to 279,659,269.60, 385,952,776.40 and 154,236,002.16

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Solution

The fourth proportional to 279,659,269.60, 385,952,776.40 and 154,236,002.16 is: 212,858,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,659,269.60 : 385,952,776.40 = 154,236,002.16 : x
  2. Step 2: Convert to fraction form
    279,659,269.60/385,952,776.40 = 154,236,002.16/x
  3. Step 3: Cross multiply
    279,659,269.60x = 385,952,776.40 × 154,236,002.16
  4. Step 4: Simplify right side
    279,659,269.60x = 59,527,813,254,488,392
  5. Step 5: Solve for x
    x = 59,527,813,254,488,392/279,659,269.60
  6. Step 6: Final answer
    x = 212,858,359.17

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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.