Home / 388,368,014.20-582,552,021.30-355,111,617.40

Finding the Fourth Proportional to 388,368,014.20, 582,552,021.30 and 355,111,617.40

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Solution

The fourth proportional to 388,368,014.20, 582,552,021.30 and 355,111,617.40 is: 532,667,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,368,014.20 : 582,552,021.30 = 355,111,617.40 : x
  2. Step 2: Convert to fraction form
    388,368,014.20/582,552,021.30 = 355,111,617.40/x
  3. Step 3: Cross multiply
    388,368,014.20x = 582,552,021.30 × 355,111,617.40
  4. Step 4: Simplify right side
    388,368,014.20x = 206,870,990,503,482,208
  5. Step 5: Solve for x
    x = 206,870,990,503,482,208/388,368,014.20
  6. Step 6: Final answer
    x = 532,667,426.10

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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.