Home / 429,359,623,241.40-644,039,434,862.10-115,322,491,567.80

Finding the Fourth Proportional to 429,359,623,241.40, 644,039,434,862.10 and 115,322,491,567.80

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Solution

The fourth proportional to 429,359,623,241.40, 644,039,434,862.10 and 115,322,491,567.80 is: 172,983,737,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,359,623,241.40 : 644,039,434,862.10 = 115,322,491,567.80 : x
  2. Step 2: Convert to fraction form
    429,359,623,241.40/644,039,434,862.10 = 115,322,491,567.80/x
  3. Step 3: Cross multiply
    429,359,623,241.40x = 644,039,434,862.10 × 115,322,491,567.80
  4. Step 4: Simplify right side
    429,359,623,241.40x = 74,272,232,296,215,205,642,240
  5. Step 5: Solve for x
    x = 74,272,232,296,215,205,642,240/429,359,623,241.40
  6. Step 6: Final answer
    x = 172,983,737,351.70

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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.