Home / 20,705,363.20-31,069,854.60-7,935,032.80

Finding the Fourth Proportional to 20,705,363.20, 31,069,854.60 and 7,935,032.80

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Solution

The fourth proportional to 20,705,363.20, 31,069,854.60 and 7,935,032.80 is: 11,907,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,363.20 : 31,069,854.60 = 7,935,032.80 : x
  2. Step 2: Convert to fraction form
    20,705,363.20/31,069,854.60 = 7,935,032.80/x
  3. Step 3: Cross multiply
    20,705,363.20x = 31,069,854.60 × 7,935,032.80
  4. Step 4: Simplify right side
    20,705,363.20x = 246,540,315,342,230.88
  5. Step 5: Solve for x
    x = 246,540,315,342,230.88/20,705,363.20
  6. Step 6: Final answer
    x = 11,907,075.14

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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.