Home / 193,156,720.80-289,635,548.40-71,925,770.40

Finding the Fourth Proportional to 193,156,720.80, 289,635,548.40 and 71,925,770.40

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Solution

The fourth proportional to 193,156,720.80, 289,635,548.40 and 71,925,770.40 is: 107,851,592.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,156,720.80 : 289,635,548.40 = 71,925,770.40 : x
  2. Step 2: Convert to fraction form
    193,156,720.80/289,635,548.40 = 71,925,770.40/x
  3. Step 3: Cross multiply
    193,156,720.80x = 289,635,548.40 × 71,925,770.40
  4. Step 4: Simplify right side
    193,156,720.80x = 20,832,259,953,896,488
  5. Step 5: Solve for x
    x = 20,832,259,953,896,488/193,156,720.80
  6. Step 6: Final answer
    x = 107,851,592.57

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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.