Home / 120,296,197.76-166,008,875.78-65,292,065.60

Finding the Fourth Proportional to 120,296,197.76, 166,008,875.78 and 65,292,065.60

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Solution

The fourth proportional to 120,296,197.76, 166,008,875.78 and 65,292,065.60 is: 90,103,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,296,197.76 : 166,008,875.78 = 65,292,065.60 : x
  2. Step 2: Convert to fraction form
    120,296,197.76/166,008,875.78 = 65,292,065.60/x
  3. Step 3: Cross multiply
    120,296,197.76x = 166,008,875.78 × 65,292,065.60
  4. Step 4: Simplify right side
    120,296,197.76x = 10,839,062,407,283,552
  5. Step 5: Solve for x
    x = 10,839,062,407,283,552/120,296,197.76
  6. Step 6: Final answer
    x = 90,103,117.21

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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.