Home / 21,180,461.76-31,787,715.60-10,948,318.20

Finding the Fourth Proportional to 21,180,461.76, 31,787,715.60 and 10,948,318.20

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Solution

The fourth proportional to 21,180,461.76, 31,787,715.60 and 10,948,318.20 is: 16,431,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180,461.76 : 31,787,715.60 = 10,948,318.20 : x
  2. Step 2: Convert to fraction form
    21,180,461.76/31,787,715.60 = 10,948,318.20/x
  3. Step 3: Cross multiply
    21,180,461.76x = 31,787,715.60 × 10,948,318.20
  4. Step 4: Simplify right side
    21,180,461.76x = 348,022,025,239,903.94
  5. Step 5: Solve for x
    x = 348,022,025,239,903.94/21,180,461.76
  6. Step 6: Final answer
    x = 16,431,276.58

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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.