Home / 171,607,159.20-257,410,738.80-90,985,591.20

Finding the Fourth Proportional to 171,607,159.20, 257,410,738.80 and 90,985,591.20

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Solution

The fourth proportional to 171,607,159.20, 257,410,738.80 and 90,985,591.20 is: 136,478,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,607,159.20 : 257,410,738.80 = 90,985,591.20 : x
  2. Step 2: Convert to fraction form
    171,607,159.20/257,410,738.80 = 90,985,591.20/x
  3. Step 3: Cross multiply
    171,607,159.20x = 257,410,738.80 × 90,985,591.20
  4. Step 4: Simplify right side
    171,607,159.20x = 23,420,668,250,946,780
  5. Step 5: Solve for x
    x = 23,420,668,250,946,780/171,607,159.20
  6. Step 6: Final answer
    x = 136,478,386.80

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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.