Home / 30,720,332.21-42,393,929.24-16,969,296.33

Finding the Fourth Proportional to 30,720,332.21, 42,393,929.24 and 16,969,296.33

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Solution

The fourth proportional to 30,720,332.21, 42,393,929.24 and 16,969,296.33 is: 23,417,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720,332.21 : 42,393,929.24 = 16,969,296.33 : x
  2. Step 2: Convert to fraction form
    30,720,332.21/42,393,929.24 = 16,969,296.33/x
  3. Step 3: Cross multiply
    30,720,332.21x = 42,393,929.24 × 16,969,296.33
  4. Step 4: Simplify right side
    30,720,332.21x = 719,395,147,781,765.12
  5. Step 5: Solve for x
    x = 719,395,147,781,765.12/30,720,332.21
  6. Step 6: Final answer
    x = 23,417,557.56

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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.