Home / 209,915,188.15-289,787,835.91-130,555,829.38

Finding the Fourth Proportional to 209,915,188.15, 289,787,835.91 and 130,555,829.38

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Solution

The fourth proportional to 209,915,188.15, 289,787,835.91 and 130,555,829.38 is: 180,232,271.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,915,188.15 : 289,787,835.91 = 130,555,829.38 : x
  2. Step 2: Convert to fraction form
    209,915,188.15/289,787,835.91 = 130,555,829.38/x
  3. Step 3: Cross multiply
    209,915,188.15x = 289,787,835.91 × 130,555,829.38
  4. Step 4: Simplify right side
    209,915,188.15x = 37,833,491,260,016,464
  5. Step 5: Solve for x
    x = 37,833,491,260,016,464/209,915,188.15
  6. Step 6: Final answer
    x = 180,232,271.87

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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.