Home / 69,090,651.90-103,658,400.77-20,568,925.40

Finding the Fourth Proportional to 69,090,651.90, 103,658,400.77 and 20,568,925.40

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Solution

The fourth proportional to 69,090,651.90, 103,658,400.77 and 20,568,925.40 is: 30,860,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,090,651.90 : 103,658,400.77 = 20,568,925.40 : x
  2. Step 2: Convert to fraction form
    69,090,651.90/103,658,400.77 = 20,568,925.40/x
  3. Step 3: Cross multiply
    69,090,651.90x = 103,658,400.77 × 20,568,925.40
  4. Step 4: Simplify right side
    69,090,651.90x = 2,132,141,911,900,296
  5. Step 5: Solve for x
    x = 2,132,141,911,900,296/69,090,651.90
  6. Step 6: Final answer
    x = 30,860,063.60

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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.