Home / 805,680,057.80-1,208,520,086.70-422,677,843.40

Finding the Fourth Proportional to 805,680,057.80, 1,208,520,086.70 and 422,677,843.40

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Solution

The fourth proportional to 805,680,057.80, 1,208,520,086.70 and 422,677,843.40 is: 634,016,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,680,057.80 : 1,208,520,086.70 = 422,677,843.40 : x
  2. Step 2: Convert to fraction form
    805,680,057.80/1,208,520,086.70 = 422,677,843.40/x
  3. Step 3: Cross multiply
    805,680,057.80x = 1,208,520,086.70 × 422,677,843.40
  4. Step 4: Simplify right side
    805,680,057.80x = 510,814,663,951,937,024
  5. Step 5: Solve for x
    x = 510,814,663,951,937,024/805,680,057.80
  6. Step 6: Final answer
    x = 634,016,765.10

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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.