Home / 256,123,412.76-384,195,747.94-74,370,590.76

Finding the Fourth Proportional to 256,123,412.76, 384,195,747.94 and 74,370,590.76

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Solution

The fourth proportional to 256,123,412.76, 384,195,747.94 and 74,370,590.76 is: 111,558,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,123,412.76 : 384,195,747.94 = 74,370,590.76 : x
  2. Step 2: Convert to fraction form
    256,123,412.76/384,195,747.94 = 74,370,590.76/x
  3. Step 3: Cross multiply
    256,123,412.76x = 384,195,747.94 × 74,370,590.76
  4. Step 4: Simplify right side
    256,123,412.76x = 28,572,864,741,777,856
  5. Step 5: Solve for x
    x = 28,572,864,741,777,856/256,123,412.76
  6. Step 6: Final answer
    x = 111,558,972.43

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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.