Home / 87,111,022.41-130,686,219.05-28,818,563.45

Finding the Fourth Proportional to 87,111,022.41, 130,686,219.05 and 28,818,563.45

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Solution

The fourth proportional to 87,111,022.41, 130,686,219.05 and 28,818,563.45 is: 43,234,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,111,022.41 : 130,686,219.05 = 28,818,563.45 : x
  2. Step 2: Convert to fraction form
    87,111,022.41/130,686,219.05 = 28,818,563.45/x
  3. Step 3: Cross multiply
    87,111,022.41x = 130,686,219.05 × 28,818,563.45
  4. Step 4: Simplify right side
    87,111,022.41x = 3,766,189,094,935,500
  5. Step 5: Solve for x
    x = 3,766,189,094,935,500/87,111,022.41
  6. Step 6: Final answer
    x = 43,234,357.61

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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.