Home / 2,578,958,700.56-3,868,060,137.20-1,268,509,000.40

Finding the Fourth Proportional to 2,578,958,700.56, 3,868,060,137.20 and 1,268,509,000.40

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Solution

The fourth proportional to 2,578,958,700.56, 3,868,060,137.20 and 1,268,509,000.40 is: 1,902,577,616.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,958,700.56 : 3,868,060,137.20 = 1,268,509,000.40 : x
  2. Step 2: Convert to fraction form
    2,578,958,700.56/3,868,060,137.20 = 1,268,509,000.40/x
  3. Step 3: Cross multiply
    2,578,958,700.56x = 3,868,060,137.20 × 1,268,509,000.40
  4. Step 4: Simplify right side
    2,578,958,700.56x = 4,906,669,098,126,658,560
  5. Step 5: Solve for x
    x = 4,906,669,098,126,658,560/2,578,958,700.56
  6. Step 6: Final answer
    x = 1,902,577,616.72

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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.