Home / 394,022,428.40-590,979,988.20-102,912,316.40

Finding the Fourth Proportional to 394,022,428.40, 590,979,988.20 and 102,912,316.40

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Solution

The fourth proportional to 394,022,428.40, 590,979,988.20 and 102,912,316.40 is: 154,354,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,022,428.40 : 590,979,988.20 = 102,912,316.40 : x
  2. Step 2: Convert to fraction form
    394,022,428.40/590,979,988.20 = 102,912,316.40/x
  3. Step 3: Cross multiply
    394,022,428.40x = 590,979,988.20 × 102,912,316.40
  4. Step 4: Simplify right side
    394,022,428.40x = 60,819,119,531,706,672
  5. Step 5: Solve for x
    x = 60,819,119,531,706,672/394,022,428.40
  6. Step 6: Final answer
    x = 154,354,460.93

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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.