Home / 528,408,086.40-792,612,129.60-140,290,819.20

Finding the Fourth Proportional to 528,408,086.40, 792,612,129.60 and 140,290,819.20

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Solution

The fourth proportional to 528,408,086.40, 792,612,129.60 and 140,290,819.20 is: 210,436,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,408,086.40 : 792,612,129.60 = 140,290,819.20 : x
  2. Step 2: Convert to fraction form
    528,408,086.40/792,612,129.60 = 140,290,819.20/x
  3. Step 3: Cross multiply
    528,408,086.40x = 792,612,129.60 × 140,290,819.20
  4. Step 4: Simplify right side
    528,408,086.40x = 111,196,204,969,440,560
  5. Step 5: Solve for x
    x = 111,196,204,969,440,560/528,408,086.40
  6. Step 6: Final answer
    x = 210,436,228.80

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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.