Home / 208,511,412.96-312,785,502.42-77,355,207.78

Finding the Fourth Proportional to 208,511,412.96, 312,785,502.42 and 77,355,207.78

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Solution

The fourth proportional to 208,511,412.96, 312,785,502.42 and 77,355,207.78 is: 116,039,631.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,511,412.96 : 312,785,502.42 = 77,355,207.78 : x
  2. Step 2: Convert to fraction form
    208,511,412.96/312,785,502.42 = 77,355,207.78/x
  3. Step 3: Cross multiply
    208,511,412.96x = 312,785,502.42 × 77,355,207.78
  4. Step 4: Simplify right side
    208,511,412.96x = 24,195,587,530,270,796
  5. Step 5: Solve for x
    x = 24,195,587,530,270,796/208,511,412.96
  6. Step 6: Final answer
    x = 116,039,631.53

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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.