Home / 413,985,255.36-571,289,642.88-228,342,285.12

Finding the Fourth Proportional to 413,985,255.36, 571,289,642.88 and 228,342,285.12

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Solution

The fourth proportional to 413,985,255.36, 571,289,642.88 and 228,342,285.12 is: 315,106,832.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,985,255.36 : 571,289,642.88 = 228,342,285.12 : x
  2. Step 2: Convert to fraction form
    413,985,255.36/571,289,642.88 = 228,342,285.12/x
  3. Step 3: Cross multiply
    413,985,255.36x = 571,289,642.88 × 228,342,285.12
  4. Step 4: Simplify right side
    413,985,255.36x = 130,449,582,520,607,936
  5. Step 5: Solve for x
    x = 130,449,582,520,607,936/413,985,255.36
  6. Step 6: Final answer
    x = 315,106,832.51

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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.