Home / 20,856,801.60-31,285,202.40-5,710,708.80

Finding the Fourth Proportional to 20,856,801.60, 31,285,202.40 and 5,710,708.80

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Solution

The fourth proportional to 20,856,801.60, 31,285,202.40 and 5,710,708.80 is: 8,566,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856,801.60 : 31,285,202.40 = 5,710,708.80 : x
  2. Step 2: Convert to fraction form
    20,856,801.60/31,285,202.40 = 5,710,708.80/x
  3. Step 3: Cross multiply
    20,856,801.60x = 31,285,202.40 × 5,710,708.80
  4. Step 4: Simplify right side
    20,856,801.60x = 178,660,680,655,461.09
  5. Step 5: Solve for x
    x = 178,660,680,655,461.09/20,856,801.60
  6. Step 6: Final answer
    x = 8,566,063.20

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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.