Home / 389,964,933.70-584,947,365.03-171,615,275.71

Finding the Fourth Proportional to 389,964,933.70, 584,947,365.03 and 171,615,275.71

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Solution

The fourth proportional to 389,964,933.70, 584,947,365.03 and 171,615,275.71 is: 257,422,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,964,933.70 : 584,947,365.03 = 171,615,275.71 : x
  2. Step 2: Convert to fraction form
    389,964,933.70/584,947,365.03 = 171,615,275.71/x
  3. Step 3: Cross multiply
    389,964,933.70x = 584,947,365.03 × 171,615,275.71
  4. Step 4: Simplify right side
    389,964,933.70x = 100,385,903,325,461,456
  5. Step 5: Solve for x
    x = 100,385,903,325,461,456/389,964,933.70
  6. Step 6: Final answer
    x = 257,422,897.93

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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.