Home / 429,359,623,007.40-644,039,434,511.10-115,322,491,333.80

Finding the Fourth Proportional to 429,359,623,007.40, 644,039,434,511.10 and 115,322,491,333.80

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Solution

The fourth proportional to 429,359,623,007.40, 644,039,434,511.10 and 115,322,491,333.80 is: 172,983,737,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,359,623,007.40 : 644,039,434,511.10 = 115,322,491,333.80 : x
  2. Step 2: Convert to fraction form
    429,359,623,007.40/644,039,434,511.10 = 115,322,491,333.80/x
  3. Step 3: Cross multiply
    429,359,623,007.40x = 644,039,434,511.10 × 115,322,491,333.80
  4. Step 4: Simplify right side
    429,359,623,007.40x = 74,272,232,105,031,782,891,520
  5. Step 5: Solve for x
    x = 74,272,232,105,031,782,891,520/429,359,623,007.40
  6. Step 6: Final answer
    x = 172,983,737,000.70

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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.