Home / 522,398,573.78-720,888,417.86-284,244,738.44

Finding the Fourth Proportional to 522,398,573.78, 720,888,417.86 and 284,244,738.44

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Solution

The fourth proportional to 522,398,573.78, 720,888,417.86 and 284,244,738.44 is: 392,245,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,398,573.78 : 720,888,417.86 = 284,244,738.44 : x
  2. Step 2: Convert to fraction form
    522,398,573.78/720,888,417.86 = 284,244,738.44/x
  3. Step 3: Cross multiply
    522,398,573.78x = 720,888,417.86 × 284,244,738.44
  4. Step 4: Simplify right side
    522,398,573.78x = 204,908,739,774,015,456
  5. Step 5: Solve for x
    x = 204,908,739,774,015,456/522,398,573.78
  6. Step 6: Final answer
    x = 392,245,978.57

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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.