Home / 15,522,145.52-21,421,223.16-8,646,632.24

Finding the Fourth Proportional to 15,522,145.52, 21,421,223.16 and 8,646,632.24

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Solution

The fourth proportional to 15,522,145.52, 21,421,223.16 and 8,646,632.24 is: 11,932,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,522,145.52 : 21,421,223.16 = 8,646,632.24 : x
  2. Step 2: Convert to fraction form
    15,522,145.52/21,421,223.16 = 8,646,632.24/x
  3. Step 3: Cross multiply
    15,522,145.52x = 21,421,223.16 × 8,646,632.24
  4. Step 4: Simplify right side
    15,522,145.52x = 185,221,438,795,490.69
  5. Step 5: Solve for x
    x = 185,221,438,795,490.69/15,522,145.52
  6. Step 6: Final answer
    x = 11,932,721.45

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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.