Home / 21,151,866.30-31,727,799.45-5,195,514.30

Finding the Fourth Proportional to 21,151,866.30, 31,727,799.45 and 5,195,514.30

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Solution

The fourth proportional to 21,151,866.30, 31,727,799.45 and 5,195,514.30 is: 7,793,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,151,866.30 : 31,727,799.45 = 5,195,514.30 : x
  2. Step 2: Convert to fraction form
    21,151,866.30/31,727,799.45 = 5,195,514.30/x
  3. Step 3: Cross multiply
    21,151,866.30x = 31,727,799.45 × 5,195,514.30
  4. Step 4: Simplify right side
    21,151,866.30x = 164,842,235,750,007.12
  5. Step 5: Solve for x
    x = 164,842,235,750,007.12/21,151,866.30
  6. Step 6: Final answer
    x = 7,793,271.45

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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.