Home / 290,206,313.38-434,878,998.61-213,152,682.79

Finding the Fourth Proportional to 290,206,313.38, 434,878,998.61 and 213,152,682.79

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Solution

The fourth proportional to 290,206,313.38, 434,878,998.61 and 213,152,682.79 is: 319,412,848.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,206,313.38 : 434,878,998.61 = 213,152,682.79 : x
  2. Step 2: Convert to fraction form
    290,206,313.38/434,878,998.61 = 213,152,682.79/x
  3. Step 3: Cross multiply
    290,206,313.38x = 434,878,998.61 × 213,152,682.79
  4. Step 4: Simplify right side
    290,206,313.38x = 92,695,625,242,750,176
  5. Step 5: Solve for x
    x = 92,695,625,242,750,176/290,206,313.38
  6. Step 6: Final answer
    x = 319,412,848.61

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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.