Home / 209,915,179.58-289,787,824.09-130,555,820.81

Finding the Fourth Proportional to 209,915,179.58, 289,787,824.09 and 130,555,820.81

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Solution

The fourth proportional to 209,915,179.58, 289,787,824.09 and 130,555,820.81 is: 180,232,260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,915,179.58 : 289,787,824.09 = 130,555,820.81 : x
  2. Step 2: Convert to fraction form
    209,915,179.58/289,787,824.09 = 130,555,820.81/x
  3. Step 3: Cross multiply
    209,915,179.58x = 289,787,824.09 × 130,555,820.81
  4. Step 4: Simplify right side
    209,915,179.58x = 37,833,487,235,701,504
  5. Step 5: Solve for x
    x = 37,833,487,235,701,504/209,915,179.58
  6. Step 6: Final answer
    x = 180,232,260.05

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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.