Home / 21,282,528.29-31,923,792.71-5,108,479.52

Finding the Fourth Proportional to 21,282,528.29, 31,923,792.71 and 5,108,479.52

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Solution

The fourth proportional to 21,282,528.29, 31,923,792.71 and 5,108,479.52 is: 7,662,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282,528.29 : 31,923,792.71 = 5,108,479.52 : x
  2. Step 2: Convert to fraction form
    21,282,528.29/31,923,792.71 = 5,108,479.52/x
  3. Step 3: Cross multiply
    21,282,528.29x = 31,923,792.71 × 5,108,479.52
  4. Step 4: Simplify right side
    21,282,528.29x = 163,082,041,234,217.88
  5. Step 5: Solve for x
    x = 163,082,041,234,217.88/21,282,528.29
  6. Step 6: Final answer
    x = 7,662,719.34

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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.