Home / 393,165,000.80-589,747,501.20-368,931,291.20

Finding the Fourth Proportional to 393,165,000.80, 589,747,501.20 and 368,931,291.20

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Solution

The fourth proportional to 393,165,000.80, 589,747,501.20 and 368,931,291.20 is: 553,396,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,165,000.80 : 589,747,501.20 = 368,931,291.20 : x
  2. Step 2: Convert to fraction form
    393,165,000.80/589,747,501.20 = 368,931,291.20/x
  3. Step 3: Cross multiply
    393,165,000.80x = 589,747,501.20 × 368,931,291.20
  4. Step 4: Simplify right side
    393,165,000.80x = 217,576,307,099,689,568
  5. Step 5: Solve for x
    x = 217,576,307,099,689,568/393,165,000.80
  6. Step 6: Final answer
    x = 553,396,936.80

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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.