Home / 429,359,623,009.40-644,039,434,514.10-115,322,491,335.80

Finding the Fourth Proportional to 429,359,623,009.40, 644,039,434,514.10 and 115,322,491,335.80

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Solution

The fourth proportional to 429,359,623,009.40, 644,039,434,514.10 and 115,322,491,335.80 is: 172,983,737,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,359,623,009.40 : 644,039,434,514.10 = 115,322,491,335.80 : x
  2. Step 2: Convert to fraction form
    429,359,623,009.40/644,039,434,514.10 = 115,322,491,335.80/x
  3. Step 3: Cross multiply
    429,359,623,009.40x = 644,039,434,514.10 × 115,322,491,335.80
  4. Step 4: Simplify right side
    429,359,623,009.40x = 74,272,232,106,665,825,009,664
  5. Step 5: Solve for x
    x = 74,272,232,106,665,825,009,664/429,359,623,009.40
  6. Step 6: Final answer
    x = 172,983,737,003.70

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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.