Home / 389,685,754.88-537,639,811.16-265,711,198.40

Finding the Fourth Proportional to 389,685,754.88, 537,639,811.16 and 265,711,198.40

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Solution

The fourth proportional to 389,685,754.88, 537,639,811.16 and 265,711,198.40 is: 366,595,177.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,685,754.88 : 537,639,811.16 = 265,711,198.40 : x
  2. Step 2: Convert to fraction form
    389,685,754.88/537,639,811.16 = 265,711,198.40/x
  3. Step 3: Cross multiply
    389,685,754.88x = 537,639,811.16 × 265,711,198.40
  4. Step 4: Simplify right side
    389,685,754.88x = 142,856,918,530,873,296
  5. Step 5: Solve for x
    x = 142,856,918,530,873,296/389,685,754.88
  6. Step 6: Final answer
    x = 366,595,177.63

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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.