Home / 57,017,126,144.13-78,683,711,996.62-30,945,491,869.72

Finding the Fourth Proportional to 57,017,126,144.13, 78,683,711,996.62 and 30,945,491,869.72

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Solution

The fourth proportional to 57,017,126,144.13, 78,683,711,996.62 and 30,945,491,869.72 is: 42,704,821,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,017,126,144.13 : 78,683,711,996.62 = 30,945,491,869.72 : x
  2. Step 2: Convert to fraction form
    57,017,126,144.13/78,683,711,996.62 = 30,945,491,869.72/x
  3. Step 3: Cross multiply
    57,017,126,144.13x = 78,683,711,996.62 × 30,945,491,869.72
  4. Step 4: Simplify right side
    57,017,126,144.13x = 2,434,906,169,870,639,955,968
  5. Step 5: Solve for x
    x = 2,434,906,169,870,639,955,968/57,017,126,144.13
  6. Step 6: Final answer
    x = 42,704,821,069.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.