Home / 256,711,058.70-385,025,269.65-74,915,628.30

Finding the Fourth Proportional to 256,711,058.70, 385,025,269.65 and 74,915,628.30

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Solution

The fourth proportional to 256,711,058.70, 385,025,269.65 and 74,915,628.30 is: 112,361,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,711,058.70 : 385,025,269.65 = 74,915,628.30 : x
  2. Step 2: Convert to fraction form
    256,711,058.70/385,025,269.65 = 74,915,628.30/x
  3. Step 3: Cross multiply
    256,711,058.70x = 385,025,269.65 × 74,915,628.30
  4. Step 4: Simplify right side
    256,711,058.70x = 28,844,409,987,206,668
  5. Step 5: Solve for x
    x = 28,844,409,987,206,668/256,711,058.70
  6. Step 6: Final answer
    x = 112,361,384.56

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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.