Home / 638,720,247.06-957,935,814.75-293,341,845.78

Finding the Fourth Proportional to 638,720,247.06, 957,935,814.75 and 293,341,845.78

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Solution

The fourth proportional to 638,720,247.06, 957,935,814.75 and 293,341,845.78 is: 439,946,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,720,247.06 : 957,935,814.75 = 293,341,845.78 : x
  2. Step 2: Convert to fraction form
    638,720,247.06/957,935,814.75 = 293,341,845.78/x
  3. Step 3: Cross multiply
    638,720,247.06x = 957,935,814.75 × 293,341,845.78
  4. Step 4: Simplify right side
    638,720,247.06x = 281,002,660,037,533,120
  5. Step 5: Solve for x
    x = 281,002,660,037,533,120/638,720,247.06
  6. Step 6: Final answer
    x = 439,946,379.23

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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.