Home / 21,490,502.28-29,656,614.78-11,700,834.36

Finding the Fourth Proportional to 21,490,502.28, 29,656,614.78 and 11,700,834.36

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Solution

The fourth proportional to 21,490,502.28, 29,656,614.78 and 11,700,834.36 is: 16,146,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490,502.28 : 29,656,614.78 = 11,700,834.36 : x
  2. Step 2: Convert to fraction form
    21,490,502.28/29,656,614.78 = 11,700,834.36/x
  3. Step 3: Cross multiply
    21,490,502.28x = 29,656,614.78 × 11,700,834.36
  4. Step 4: Simplify right side
    21,490,502.28x = 347,007,137,219,107.81
  5. Step 5: Solve for x
    x = 347,007,137,219,107.81/21,490,502.28
  6. Step 6: Final answer
    x = 16,146,999.86

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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.