Home / 180,990,450-249,764,721.48-98,482,813.20

Finding the Fourth Proportional to 180,990,450, 249,764,721.48 and 98,482,813.20

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Solution

The fourth proportional to 180,990,450, 249,764,721.48 and 98,482,813.20 is: 135,905,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,990,450 : 249,764,721.48 = 98,482,813.20 : x
  2. Step 2: Convert to fraction form
    180,990,450/249,764,721.48 = 98,482,813.20/x
  3. Step 3: Cross multiply
    180,990,450x = 249,764,721.48 × 98,482,813.20
  4. Step 4: Simplify right side
    180,990,450x = 24,597,532,409,464,868
  5. Step 5: Solve for x
    x = 24,597,532,409,464,868/180,990,450
  6. Step 6: Final answer
    x = 135,905,139.80

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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.