Home / 15,571,143.99-21,488,831.56-8,955,734.27

Finding the Fourth Proportional to 15,571,143.99, 21,488,831.56 and 8,955,734.27

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Solution

The fourth proportional to 15,571,143.99, 21,488,831.56 and 8,955,734.27 is: 12,359,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571,143.99 : 21,488,831.56 = 8,955,734.27 : x
  2. Step 2: Convert to fraction form
    15,571,143.99/21,488,831.56 = 8,955,734.27/x
  3. Step 3: Cross multiply
    15,571,143.99x = 21,488,831.56 × 8,955,734.27
  4. Step 4: Simplify right side
    15,571,143.99x = 192,448,265,282,142.53
  5. Step 5: Solve for x
    x = 192,448,265,282,142.53/15,571,143.99
  6. Step 6: Final answer
    x = 12,359,288.79

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1.5x scale

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.