Home / 356,300,979.55-534,450,400.09-90,406,176.61

Finding the Fourth Proportional to 356,300,979.55, 534,450,400.09 and 90,406,176.61

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Solution

The fourth proportional to 356,300,979.55, 534,450,400.09 and 90,406,176.61 is: 135,608,993.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,300,979.55 : 534,450,400.09 = 90,406,176.61 : x
  2. Step 2: Convert to fraction form
    356,300,979.55/534,450,400.09 = 90,406,176.61/x
  3. Step 3: Cross multiply
    356,300,979.55x = 534,450,400.09 × 90,406,176.61
  4. Step 4: Simplify right side
    356,300,979.55x = 48,317,617,259,821,696
  5. Step 5: Solve for x
    x = 48,317,617,259,821,696/356,300,979.55
  6. Step 6: Final answer
    x = 135,608,993.61

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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.