Home / 30,031,979.76-41,442,535.92-16,978,458.24

Finding the Fourth Proportional to 30,031,979.76, 41,442,535.92 and 16,978,458.24

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Solution

The fourth proportional to 30,031,979.76, 41,442,535.92 and 16,978,458.24 is: 23,429,369.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031,979.76 : 41,442,535.92 = 16,978,458.24 : x
  2. Step 2: Convert to fraction form
    30,031,979.76/41,442,535.92 = 16,978,458.24/x
  3. Step 3: Cross multiply
    30,031,979.76x = 41,442,535.92 × 16,978,458.24
  4. Step 4: Simplify right side
    30,031,979.76x = 703,630,365,477,420
  5. Step 5: Solve for x
    x = 703,630,365,477,420/30,031,979.76
  6. Step 6: Final answer
    x = 23,429,369.99

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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.