Home / 669,975,415.59-1,004,043,747.11-423,891,520.41

Finding the Fourth Proportional to 669,975,415.59, 1,004,043,747.11 and 423,891,520.41

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Solution

The fourth proportional to 669,975,415.59, 1,004,043,747.11 and 423,891,520.41 is: 635,255,593.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,975,415.59 : 1,004,043,747.11 = 423,891,520.41 : x
  2. Step 2: Convert to fraction form
    669,975,415.59/1,004,043,747.11 = 423,891,520.41/x
  3. Step 3: Cross multiply
    669,975,415.59x = 1,004,043,747.11 × 423,891,520.41
  4. Step 4: Simplify right side
    669,975,415.59x = 425,605,630,520,611,456
  5. Step 5: Solve for x
    x = 425,605,630,520,611,456/669,975,415.59
  6. Step 6: Final answer
    x = 635,255,593.89

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1.5x scale

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.