Home / 30,790,145.97-42,490,514.07-16,661,332.50

Finding the Fourth Proportional to 30,790,145.97, 42,490,514.07 and 16,661,332.50

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Solution

The fourth proportional to 30,790,145.97, 42,490,514.07 and 16,661,332.50 is: 22,992,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790,145.97 : 42,490,514.07 = 16,661,332.50 : x
  2. Step 2: Convert to fraction form
    30,790,145.97/42,490,514.07 = 16,661,332.50/x
  3. Step 3: Cross multiply
    30,790,145.97x = 42,490,514.07 × 16,661,332.50
  4. Step 4: Simplify right side
    30,790,145.97x = 707,948,583,016,198.25
  5. Step 5: Solve for x
    x = 707,948,583,016,198.25/30,790,145.97
  6. Step 6: Final answer
    x = 22,992,699.80

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1.5x scale

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.