Home / 422,011,415.40-633,017,123.10-284,261,908.20

Finding the Fourth Proportional to 422,011,415.40, 633,017,123.10 and 284,261,908.20

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Solution

The fourth proportional to 422,011,415.40, 633,017,123.10 and 284,261,908.20 is: 426,392,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,011,415.40 : 633,017,123.10 = 284,261,908.20 : x
  2. Step 2: Convert to fraction form
    422,011,415.40/633,017,123.10 = 284,261,908.20/x
  3. Step 3: Cross multiply
    422,011,415.40x = 633,017,123.10 × 284,261,908.20
  4. Step 4: Simplify right side
    422,011,415.40x = 179,942,655,335,680,288
  5. Step 5: Solve for x
    x = 179,942,655,335,680,288/422,011,415.40
  6. Step 6: Final answer
    x = 426,392,862.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.