Home / 258,979,756.80-388,407,427.20-149,568,326.40

Finding the Fourth Proportional to 258,979,756.80, 388,407,427.20 and 149,568,326.40

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Solution

The fourth proportional to 258,979,756.80, 388,407,427.20 and 149,568,326.40 is: 224,316,562.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,979,756.80 : 388,407,427.20 = 149,568,326.40 : x
  2. Step 2: Convert to fraction form
    258,979,756.80/388,407,427.20 = 149,568,326.40/x
  3. Step 3: Cross multiply
    258,979,756.80x = 388,407,427.20 × 149,568,326.40
  4. Step 4: Simplify right side
    258,979,756.80x = 58,093,448,847,633,840
  5. Step 5: Solve for x
    x = 58,093,448,847,633,840/258,979,756.80
  6. Step 6: Final answer
    x = 224,316,562.67

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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.