Home / 20,160,997.20-30,241,495.80-12,098,840.40

Finding the Fourth Proportional to 20,160,997.20, 30,241,495.80 and 12,098,840.40

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Solution

The fourth proportional to 20,160,997.20, 30,241,495.80 and 12,098,840.40 is: 18,148,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,997.20 : 30,241,495.80 = 12,098,840.40 : x
  2. Step 2: Convert to fraction form
    20,160,997.20/30,241,495.80 = 12,098,840.40/x
  3. Step 3: Cross multiply
    20,160,997.20x = 30,241,495.80 × 12,098,840.40
  4. Step 4: Simplify right side
    20,160,997.20x = 365,887,031,141,470.31
  5. Step 5: Solve for x
    x = 365,887,031,141,470.31/20,160,997.20
  6. Step 6: Final answer
    x = 18,148,260.60

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1.5x scale

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.