Home / 144,440,276.89-199,327,968.46-78,360,775.15

Finding the Fourth Proportional to 144,440,276.89, 199,327,968.46 and 78,360,775.15

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Solution

The fourth proportional to 144,440,276.89, 199,327,968.46 and 78,360,775.15 is: 108,138,079.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,440,276.89 : 199,327,968.46 = 78,360,775.15 : x
  2. Step 2: Convert to fraction form
    144,440,276.89/199,327,968.46 = 78,360,775.15/x
  3. Step 3: Cross multiply
    144,440,276.89x = 199,327,968.46 × 78,360,775.15
  4. Step 4: Simplify right side
    144,440,276.89x = 15,619,494,117,353,530
  5. Step 5: Solve for x
    x = 15,619,494,117,353,530/144,440,276.89
  6. Step 6: Final answer
    x = 108,138,079.31

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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.