Home / 15,359,792.94-21,196,032.66-8,390,358.54

Finding the Fourth Proportional to 15,359,792.94, 21,196,032.66 and 8,390,358.54

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Solution

The fourth proportional to 15,359,792.94, 21,196,032.66 and 8,390,358.54 is: 11,578,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,359,792.94 : 21,196,032.66 = 8,390,358.54 : x
  2. Step 2: Convert to fraction form
    15,359,792.94/21,196,032.66 = 8,390,358.54/x
  3. Step 3: Cross multiply
    15,359,792.94x = 21,196,032.66 × 8,390,358.54
  4. Step 4: Simplify right side
    15,359,792.94x = 177,842,313,642,949.91
  5. Step 5: Solve for x
    x = 177,842,313,642,949.91/15,359,792.94
  6. Step 6: Final answer
    x = 11,578,431.71

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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.