Home / 128,304,858.60-192,457,287.90-104,118,388.20

Finding the Fourth Proportional to 128,304,858.60, 192,457,287.90 and 104,118,388.20

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Solution

The fourth proportional to 128,304,858.60, 192,457,287.90 and 104,118,388.20 is: 156,177,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,858.60 : 192,457,287.90 = 104,118,388.20 : x
  2. Step 2: Convert to fraction form
    128,304,858.60/192,457,287.90 = 104,118,388.20/x
  3. Step 3: Cross multiply
    128,304,858.60x = 192,457,287.90 × 104,118,388.20
  4. Step 4: Simplify right side
    128,304,858.60x = 20,038,342,613,491,364
  5. Step 5: Solve for x
    x = 20,038,342,613,491,364/128,304,858.60
  6. Step 6: Final answer
    x = 156,177,582.30

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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.