Home / 426,508,842.56-639,763,263.84-103,392,714.56

Finding the Fourth Proportional to 426,508,842.56, 639,763,263.84 and 103,392,714.56

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Solution

The fourth proportional to 426,508,842.56, 639,763,263.84 and 103,392,714.56 is: 155,089,071.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,508,842.56 : 639,763,263.84 = 103,392,714.56 : x
  2. Step 2: Convert to fraction form
    426,508,842.56/639,763,263.84 = 103,392,714.56/x
  3. Step 3: Cross multiply
    426,508,842.56x = 639,763,263.84 × 103,392,714.56
  4. Step 4: Simplify right side
    426,508,842.56x = 66,146,860,524,183,096
  5. Step 5: Solve for x
    x = 66,146,860,524,183,096/426,508,842.56
  6. Step 6: Final answer
    x = 155,089,071.84

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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.