Home / 21,276,066.60-31,914,099.90-20,940,143.40

Finding the Fourth Proportional to 21,276,066.60, 31,914,099.90 and 20,940,143.40

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Solution

The fourth proportional to 21,276,066.60, 31,914,099.90 and 20,940,143.40 is: 31,410,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276,066.60 : 31,914,099.90 = 20,940,143.40 : x
  2. Step 2: Convert to fraction form
    21,276,066.60/31,914,099.90 = 20,940,143.40/x
  3. Step 3: Cross multiply
    21,276,066.60x = 31,914,099.90 × 20,940,143.40
  4. Step 4: Simplify right side
    21,276,066.60x = 668,285,828,387,925.62
  5. Step 5: Solve for x
    x = 668,285,828,387,925.62/21,276,066.60
  6. Step 6: Final answer
    x = 31,410,215.10

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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.