Home / 638,720,246.56-957,935,814-293,341,845.28

Finding the Fourth Proportional to 638,720,246.56, 957,935,814 and 293,341,845.28

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Solution

The fourth proportional to 638,720,246.56, 957,935,814 and 293,341,845.28 is: 439,946,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,720,246.56 : 957,935,814 = 293,341,845.28 : x
  2. Step 2: Convert to fraction form
    638,720,246.56/957,935,814 = 293,341,845.28/x
  3. Step 3: Cross multiply
    638,720,246.56x = 957,935,814 × 293,341,845.28
  4. Step 4: Simplify right side
    638,720,246.56x = 281,002,659,338,558,816
  5. Step 5: Solve for x
    x = 281,002,659,338,558,816/638,720,246.56
  6. Step 6: Final answer
    x = 439,946,378.48

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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.