Home / 19,990,021.88-29,985,037.07-7,210,525.32

Finding the Fourth Proportional to 19,990,021.88, 29,985,037.07 and 7,210,525.32

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Solution

The fourth proportional to 19,990,021.88, 29,985,037.07 and 7,210,525.32 is: 10,815,789.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990,021.88 : 29,985,037.07 = 7,210,525.32 : x
  2. Step 2: Convert to fraction form
    19,990,021.88/29,985,037.07 = 7,210,525.32/x
  3. Step 3: Cross multiply
    19,990,021.88x = 29,985,037.07 × 7,210,525.32
  4. Step 4: Simplify right side
    19,990,021.88x = 216,207,868,978,321
  5. Step 5: Solve for x
    x = 216,207,868,978,321/19,990,021.88
  6. Step 6: Final answer
    x = 10,815,789.51

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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.