Home / 87,111,023.41-130,686,220.55-28,818,564.45

Finding the Fourth Proportional to 87,111,023.41, 130,686,220.55 and 28,818,564.45

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Solution

The fourth proportional to 87,111,023.41, 130,686,220.55 and 28,818,564.45 is: 43,234,359.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,111,023.41 : 130,686,220.55 = 28,818,564.45 : x
  2. Step 2: Convert to fraction form
    87,111,023.41/130,686,220.55 = 28,818,564.45/x
  3. Step 3: Cross multiply
    87,111,023.41x = 130,686,220.55 × 28,818,564.45
  4. Step 4: Simplify right side
    87,111,023.41x = 3,766,189,269,647,089.50
  5. Step 5: Solve for x
    x = 3,766,189,269,647,089.50/87,111,023.41
  6. Step 6: Final answer
    x = 43,234,359.12

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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.