Home / 193,156,718.80-289,635,545.40-71,925,768.40

Finding the Fourth Proportional to 193,156,718.80, 289,635,545.40 and 71,925,768.40

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Solution

The fourth proportional to 193,156,718.80, 289,635,545.40 and 71,925,768.40 is: 107,851,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,156,718.80 : 289,635,545.40 = 71,925,768.40 : x
  2. Step 2: Convert to fraction form
    193,156,718.80/289,635,545.40 = 71,925,768.40/x
  3. Step 3: Cross multiply
    193,156,718.80x = 289,635,545.40 × 71,925,768.40
  4. Step 4: Simplify right side
    193,156,718.80x = 20,832,259,158,848,084
  5. Step 5: Solve for x
    x = 20,832,259,158,848,084/193,156,718.80
  6. Step 6: Final answer
    x = 107,851,589.57

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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.