Home / 15,756,571.55-21,744,025.04-8,787,255.68

Finding the Fourth Proportional to 15,756,571.55, 21,744,025.04 and 8,787,255.68

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Solution

The fourth proportional to 15,756,571.55, 21,744,025.04 and 8,787,255.68 is: 12,126,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756,571.55 : 21,744,025.04 = 8,787,255.68 : x
  2. Step 2: Convert to fraction form
    15,756,571.55/21,744,025.04 = 8,787,255.68/x
  3. Step 3: Cross multiply
    15,756,571.55x = 21,744,025.04 × 8,787,255.68
  4. Step 4: Simplify right side
    15,756,571.55x = 191,070,307,615,130.41
  5. Step 5: Solve for x
    x = 191,070,307,615,130.41/15,756,571.55
  6. Step 6: Final answer
    x = 12,126,388.47

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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.