Home / 389,964,929.37-584,947,358.54-171,615,271.39

Finding the Fourth Proportional to 389,964,929.37, 584,947,358.54 and 171,615,271.39

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Solution

The fourth proportional to 389,964,929.37, 584,947,358.54 and 171,615,271.39 is: 257,422,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,964,929.37 : 584,947,358.54 = 171,615,271.39 : x
  2. Step 2: Convert to fraction form
    389,964,929.37/584,947,358.54 = 171,615,271.39/x
  3. Step 3: Cross multiply
    389,964,929.37x = 584,947,358.54 × 171,615,271.39
  4. Step 4: Simplify right side
    389,964,929.37x = 100,385,899,683,028,848
  5. Step 5: Solve for x
    x = 100,385,899,683,028,848/389,964,929.37
  6. Step 6: Final answer
    x = 257,422,891.45

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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.