Home / 256,614,243.20-384,936,110.40-74,889,468.80

Finding the Fourth Proportional to 256,614,243.20, 384,936,110.40 and 74,889,468.80

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Solution

The fourth proportional to 256,614,243.20, 384,936,110.40 and 74,889,468.80 is: 112,338,506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,614,243.20 : 384,936,110.40 = 74,889,468.80 : x
  2. Step 2: Convert to fraction form
    256,614,243.20/384,936,110.40 = 74,889,468.80/x
  3. Step 3: Cross multiply
    256,614,243.20x = 384,936,110.40 × 74,889,468.80
  4. Step 4: Simplify right side
    256,614,243.20x = 28,827,660,829,794,152
  5. Step 5: Solve for x
    x = 28,827,660,829,794,152/256,614,243.20
  6. Step 6: Final answer
    x = 112,338,506.51

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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.