Home / 20,764,641.60-31,134,520.80-10,686,945.60

Finding the Fourth Proportional to 20,764,641.60, 31,134,520.80 and 10,686,945.60

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Solution

The fourth proportional to 20,764,641.60, 31,134,520.80 and 10,686,945.60 is: 16,024,015.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,641.60 : 31,134,520.80 = 10,686,945.60 : x
  2. Step 2: Convert to fraction form
    20,764,641.60/31,134,520.80 = 10,686,945.60/x
  3. Step 3: Cross multiply
    20,764,641.60x = 31,134,520.80 × 10,686,945.60
  4. Step 4: Simplify right side
    20,764,641.60x = 332,732,930,071,668.50
  5. Step 5: Solve for x
    x = 332,732,930,071,668.50/20,764,641.60
  6. Step 6: Final answer
    x = 16,024,015.08

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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.