Home / 111,418,388.20-167,127,582.30-85,909,220.20

Finding the Fourth Proportional to 111,418,388.20, 167,127,582.30 and 85,909,220.20

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Solution

The fourth proportional to 111,418,388.20, 167,127,582.30 and 85,909,220.20 is: 128,863,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,418,388.20 : 167,127,582.30 = 85,909,220.20 : x
  2. Step 2: Convert to fraction form
    111,418,388.20/167,127,582.30 = 85,909,220.20/x
  3. Step 3: Cross multiply
    111,418,388.20x = 167,127,582.30 × 85,909,220.20
  4. Step 4: Simplify right side
    111,418,388.20x = 14,357,800,269,304,324
  5. Step 5: Solve for x
    x = 14,357,800,269,304,324/111,418,388.20
  6. Step 6: Final answer
    x = 128,863,830.30

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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.