Home / 20,088,068.40-30,143,912.40-7,309,864.80

Finding the Fourth Proportional to 20,088,068.40, 30,143,912.40 and 7,309,864.80

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Solution

The fourth proportional to 20,088,068.40, 30,143,912.40 and 7,309,864.80 is: 10,969,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088,068.40 : 30,143,912.40 = 7,309,864.80 : x
  2. Step 2: Convert to fraction form
    20,088,068.40/30,143,912.40 = 7,309,864.80/x
  3. Step 3: Cross multiply
    20,088,068.40x = 30,143,912.40 × 7,309,864.80
  4. Step 4: Simplify right side
    20,088,068.40x = 220,347,924,187,043.50
  5. Step 5: Solve for x
    x = 220,347,924,187,043.50/20,088,068.40
  6. Step 6: Final answer
    x = 10,969,094.68

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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.