Home / 21,128,981.10-31,693,471.65-16,340,107.20

Finding the Fourth Proportional to 21,128,981.10, 31,693,471.65 and 16,340,107.20

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Solution

The fourth proportional to 21,128,981.10, 31,693,471.65 and 16,340,107.20 is: 24,510,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,128,981.10 : 31,693,471.65 = 16,340,107.20 : x
  2. Step 2: Convert to fraction form
    21,128,981.10/31,693,471.65 = 16,340,107.20/x
  3. Step 3: Cross multiply
    21,128,981.10x = 31,693,471.65 × 16,340,107.20
  4. Step 4: Simplify right side
    21,128,981.10x = 517,874,724,301,160.81
  5. Step 5: Solve for x
    x = 517,874,724,301,160.81/21,128,981.10
  6. Step 6: Final answer
    x = 24,510,160.80

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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.