Home / 284,505,385.25-426,818,994.48-85,100,331.71

Finding the Fourth Proportional to 284,505,385.25, 426,818,994.48 and 85,100,331.71

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Solution

The fourth proportional to 284,505,385.25, 426,818,994.48 and 85,100,331.71 is: 127,668,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,505,385.25 : 426,818,994.48 = 85,100,331.71 : x
  2. Step 2: Convert to fraction form
    284,505,385.25/426,818,994.48 = 85,100,331.71/x
  3. Step 3: Cross multiply
    284,505,385.25x = 426,818,994.48 × 85,100,331.71
  4. Step 4: Simplify right side
    284,505,385.25x = 36,322,438,011,443,712
  5. Step 5: Solve for x
    x = 36,322,438,011,443,712/284,505,385.25
  6. Step 6: Final answer
    x = 127,668,718.75

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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.