Home / 429,346,492.20-644,019,738.30-400,436,101.80

Finding the Fourth Proportional to 429,346,492.20, 644,019,738.30 and 400,436,101.80

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Solution

The fourth proportional to 429,346,492.20, 644,019,738.30 and 400,436,101.80 is: 600,654,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,346,492.20 : 644,019,738.30 = 400,436,101.80 : x
  2. Step 2: Convert to fraction form
    429,346,492.20/644,019,738.30 = 400,436,101.80/x
  3. Step 3: Cross multiply
    429,346,492.20x = 644,019,738.30 × 400,436,101.80
  4. Step 4: Simplify right side
    429,346,492.20x = 257,888,753,487,108,160
  5. Step 5: Solve for x
    x = 257,888,753,487,108,160/429,346,492.20
  6. Step 6: Final answer
    x = 600,654,152.70

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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.