Home / 528,771,212.80-793,156,819.20-426,734,540.80

Finding the Fourth Proportional to 528,771,212.80, 793,156,819.20 and 426,734,540.80

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Solution

The fourth proportional to 528,771,212.80, 793,156,819.20 and 426,734,540.80 is: 640,101,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,771,212.80 : 793,156,819.20 = 426,734,540.80 : x
  2. Step 2: Convert to fraction form
    528,771,212.80/793,156,819.20 = 426,734,540.80/x
  3. Step 3: Cross multiply
    528,771,212.80x = 793,156,819.20 × 426,734,540.80
  4. Step 4: Simplify right side
    528,771,212.80x = 338,467,411,023,700,672
  5. Step 5: Solve for x
    x = 338,467,411,023,700,672/528,771,212.80
  6. Step 6: Final answer
    x = 640,101,811.20

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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.