Home / 198,890,196,409.28-274,519,538,596.62-129,538,655,071.41

Finding the Fourth Proportional to 198,890,196,409.28, 274,519,538,596.62 and 129,538,655,071.41

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Solution

The fourth proportional to 198,890,196,409.28, 274,519,538,596.62 and 129,538,655,071.41 is: 178,796,604,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,890,196,409.28 : 274,519,538,596.62 = 129,538,655,071.41 : x
  2. Step 2: Convert to fraction form
    198,890,196,409.28/274,519,538,596.62 = 129,538,655,071.41/x
  3. Step 3: Cross multiply
    198,890,196,409.28x = 274,519,538,596.62 × 129,538,655,071.41
  4. Step 4: Simplify right side
    198,890,196,409.28x = 35,560,891,820,630,182,199,296
  5. Step 5: Solve for x
    x = 35,560,891,820,630,182,199,296/198,890,196,409.28
  6. Step 6: Final answer
    x = 178,796,604,672.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.