Home / 20,364,384.45-28,103,401.60-11,072,578.35

Finding the Fourth Proportional to 20,364,384.45, 28,103,401.60 and 11,072,578.35

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Solution

The fourth proportional to 20,364,384.45, 28,103,401.60 and 11,072,578.35 is: 15,280,457.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,364,384.45 : 28,103,401.60 = 11,072,578.35 : x
  2. Step 2: Convert to fraction form
    20,364,384.45/28,103,401.60 = 11,072,578.35/x
  3. Step 3: Cross multiply
    20,364,384.45x = 28,103,401.60 × 11,072,578.35
  4. Step 4: Simplify right side
    20,364,384.45x = 311,177,116,068,287.19
  5. Step 5: Solve for x
    x = 311,177,116,068,287.19/20,364,384.45
  6. Step 6: Final answer
    x = 15,280,457.74

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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.