Home / 20,956,865.60-31,435,298.40-19,964,842.40

Finding the Fourth Proportional to 20,956,865.60, 31,435,298.40 and 19,964,842.40

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Solution

The fourth proportional to 20,956,865.60, 31,435,298.40 and 19,964,842.40 is: 29,947,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,865.60 : 31,435,298.40 = 19,964,842.40 : x
  2. Step 2: Convert to fraction form
    20,956,865.60/31,435,298.40 = 19,964,842.40/x
  3. Step 3: Cross multiply
    20,956,865.60x = 31,435,298.40 × 19,964,842.40
  4. Step 4: Simplify right side
    20,956,865.60x = 627,600,778,352,972.12
  5. Step 5: Solve for x
    x = 627,600,778,352,972.12/20,956,865.60
  6. Step 6: Final answer
    x = 29,947,263.60

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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.