Home / 404,323,999.30-606,485,998.95-388,451,628.10

Finding the Fourth Proportional to 404,323,999.30, 606,485,998.95 and 388,451,628.10

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Solution

The fourth proportional to 404,323,999.30, 606,485,998.95 and 388,451,628.10 is: 582,677,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,323,999.30 : 606,485,998.95 = 388,451,628.10 : x
  2. Step 2: Convert to fraction form
    404,323,999.30/606,485,998.95 = 388,451,628.10/x
  3. Step 3: Cross multiply
    404,323,999.30x = 606,485,998.95 × 388,451,628.10
  4. Step 4: Simplify right side
    404,323,999.30x = 235,590,473,711,982,432
  5. Step 5: Solve for x
    x = 235,590,473,711,982,432/404,323,999.30
  6. Step 6: Final answer
    x = 582,677,442.15

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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.