Home / 20,956,864.60-31,435,296.90-19,964,841.40

Finding the Fourth Proportional to 20,956,864.60, 31,435,296.90 and 19,964,841.40

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Solution

The fourth proportional to 20,956,864.60, 31,435,296.90 and 19,964,841.40 is: 29,947,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,864.60 : 31,435,296.90 = 19,964,841.40 : x
  2. Step 2: Convert to fraction form
    20,956,864.60/31,435,296.90 = 19,964,841.40/x
  3. Step 3: Cross multiply
    20,956,864.60x = 31,435,296.90 × 19,964,841.40
  4. Step 4: Simplify right side
    20,956,864.60x = 627,600,716,970,411.62
  5. Step 5: Solve for x
    x = 627,600,716,970,411.62/20,956,864.60
  6. Step 6: Final answer
    x = 29,947,262.10

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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.