Home / 145,367,074.12-218,147,578.71-75,401,785.12

Finding the Fourth Proportional to 145,367,074.12, 218,147,578.71 and 75,401,785.12

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Solution

The fourth proportional to 145,367,074.12, 218,147,578.71 and 75,401,785.12 is: 113,152,974.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,367,074.12 : 218,147,578.71 = 75,401,785.12 : x
  2. Step 2: Convert to fraction form
    145,367,074.12/218,147,578.71 = 75,401,785.12/x
  3. Step 3: Cross multiply
    145,367,074.12x = 218,147,578.71 × 75,401,785.12
  4. Step 4: Simplify right side
    145,367,074.12x = 16,448,716,854,339,708
  5. Step 5: Solve for x
    x = 16,448,716,854,339,708/145,367,074.12
  6. Step 6: Final answer
    x = 113,152,974.66

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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.