Home / 389,964,934.70-584,947,366.53-171,615,276.71

Finding the Fourth Proportional to 389,964,934.70, 584,947,366.53 and 171,615,276.71

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Solution

The fourth proportional to 389,964,934.70, 584,947,366.53 and 171,615,276.71 is: 257,422,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,964,934.70 : 584,947,366.53 = 171,615,276.71 : x
  2. Step 2: Convert to fraction form
    389,964,934.70/584,947,366.53 = 171,615,276.71/x
  3. Step 3: Cross multiply
    389,964,934.70x = 584,947,366.53 × 171,615,276.71
  4. Step 4: Simplify right side
    389,964,934.70x = 100,385,904,167,831,744
  5. Step 5: Solve for x
    x = 100,385,904,167,831,744/389,964,934.70
  6. Step 6: Final answer
    x = 257,422,899.43

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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.