Home / 20,711,968.50-31,068,395.01-5,359,588.14

Finding the Fourth Proportional to 20,711,968.50, 31,068,395.01 and 5,359,588.14

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Solution

The fourth proportional to 20,711,968.50, 31,068,395.01 and 5,359,588.14 is: 8,039,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711,968.50 : 31,068,395.01 = 5,359,588.14 : x
  2. Step 2: Convert to fraction form
    20,711,968.50/31,068,395.01 = 5,359,588.14/x
  3. Step 3: Cross multiply
    20,711,968.50x = 31,068,395.01 × 5,359,588.14
  4. Step 4: Simplify right side
    20,711,968.50x = 166,513,801,424,431.19
  5. Step 5: Solve for x
    x = 166,513,801,424,431.19/20,711,968.50
  6. Step 6: Final answer
    x = 8,039,496.65

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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.