Home / 418,928,299.30-628,675,884.15-188,778,916.90

Finding the Fourth Proportional to 418,928,299.30, 628,675,884.15 and 188,778,916.90

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Solution

The fourth proportional to 418,928,299.30, 628,675,884.15 and 188,778,916.90 is: 283,296,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,928,299.30 : 628,675,884.15 = 188,778,916.90 : x
  2. Step 2: Convert to fraction form
    418,928,299.30/628,675,884.15 = 188,778,916.90/x
  3. Step 3: Cross multiply
    418,928,299.30x = 628,675,884.15 × 188,778,916.90
  4. Step 4: Simplify right side
    418,928,299.30x = 118,680,752,490,986,880
  5. Step 5: Solve for x
    x = 118,680,752,490,986,880/418,928,299.30
  6. Step 6: Final answer
    x = 283,296,097.90

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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.