Home / 258,282,094.79-387,424,541.87-76,530,847.43

Finding the Fourth Proportional to 258,282,094.79, 387,424,541.87 and 76,530,847.43

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Solution

The fourth proportional to 258,282,094.79, 387,424,541.87 and 76,530,847.43 is: 114,796,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,282,094.79 : 387,424,541.87 = 76,530,847.43 : x
  2. Step 2: Convert to fraction form
    258,282,094.79/387,424,541.87 = 76,530,847.43/x
  3. Step 3: Cross multiply
    258,282,094.79x = 387,424,541.87 × 76,530,847.43
  4. Step 4: Simplify right side
    258,282,094.79x = 29,649,928,502,170,840
  5. Step 5: Solve for x
    x = 29,649,928,502,170,840/258,282,094.79
  6. Step 6: Final answer
    x = 114,796,685.88

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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.