Home / 254,388,743.40-381,583,115.10-212,776,913.10

Finding the Fourth Proportional to 254,388,743.40, 381,583,115.10 and 212,776,913.10

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Solution

The fourth proportional to 254,388,743.40, 381,583,115.10 and 212,776,913.10 is: 319,165,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,388,743.40 : 381,583,115.10 = 212,776,913.10 : x
  2. Step 2: Convert to fraction form
    254,388,743.40/381,583,115.10 = 212,776,913.10/x
  3. Step 3: Cross multiply
    254,388,743.40x = 381,583,115.10 × 212,776,913.10
  4. Step 4: Simplify right side
    254,388,743.40x = 81,192,077,322,060,000
  5. Step 5: Solve for x
    x = 81,192,077,322,060,000/254,388,743.40
  6. Step 6: Final answer
    x = 319,165,369.65

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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.