Home / 415,476,004.40-623,214,006.60-396,344,128.40

Finding the Fourth Proportional to 415,476,004.40, 623,214,006.60 and 396,344,128.40

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Solution

The fourth proportional to 415,476,004.40, 623,214,006.60 and 396,344,128.40 is: 594,516,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,476,004.40 : 623,214,006.60 = 396,344,128.40 : x
  2. Step 2: Convert to fraction form
    415,476,004.40/623,214,006.60 = 396,344,128.40/x
  3. Step 3: Cross multiply
    415,476,004.40x = 623,214,006.60 × 396,344,128.40
  4. Step 4: Simplify right side
    415,476,004.40x = 247,007,212,252,548,832
  5. Step 5: Solve for x
    x = 247,007,212,252,548,832/415,476,004.40
  6. Step 6: Final answer
    x = 594,516,192.60

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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.