Home / 318,028,293.20-477,053,068.54-87,978,113.12

Finding the Fourth Proportional to 318,028,293.20, 477,053,068.54 and 87,978,113.12

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Solution

The fourth proportional to 318,028,293.20, 477,053,068.54 and 87,978,113.12 is: 131,970,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,028,293.20 : 477,053,068.54 = 87,978,113.12 : x
  2. Step 2: Convert to fraction form
    318,028,293.20/477,053,068.54 = 87,978,113.12/x
  3. Step 3: Cross multiply
    318,028,293.20x = 477,053,068.54 × 87,978,113.12
  4. Step 4: Simplify right side
    318,028,293.20x = 41,970,228,828,255,240
  5. Step 5: Solve for x
    x = 41,970,228,828,255,240/318,028,293.20
  6. Step 6: Final answer
    x = 131,970,109.97

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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.