Home / 563,861,928.86-778,066,350.49-312,976,896.54

Finding the Fourth Proportional to 563,861,928.86, 778,066,350.49 and 312,976,896.54

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Solution

The fourth proportional to 563,861,928.86, 778,066,350.49 and 312,976,896.54 is: 431,873,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,861,928.86 : 778,066,350.49 = 312,976,896.54 : x
  2. Step 2: Convert to fraction form
    563,861,928.86/778,066,350.49 = 312,976,896.54/x
  3. Step 3: Cross multiply
    563,861,928.86x = 778,066,350.49 × 312,976,896.54
  4. Step 4: Simplify right side
    563,861,928.86x = 243,516,791,678,436,928
  5. Step 5: Solve for x
    x = 243,516,791,678,436,928/563,861,928.86
  6. Step 6: Final answer
    x = 431,873,086.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.