Home / 640,783,506.72-884,246,219.28-362,380,856.16

Finding the Fourth Proportional to 640,783,506.72, 884,246,219.28 and 362,380,856.16

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Solution

The fourth proportional to 640,783,506.72, 884,246,219.28 and 362,380,856.16 is: 500,065,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,783,506.72 : 884,246,219.28 = 362,380,856.16 : x
  2. Step 2: Convert to fraction form
    640,783,506.72/884,246,219.28 = 362,380,856.16/x
  3. Step 3: Cross multiply
    640,783,506.72x = 884,246,219.28 × 362,380,856.16
  4. Step 4: Simplify right side
    640,783,506.72x = 320,433,901,998,929,536
  5. Step 5: Solve for x
    x = 320,433,901,998,929,536/640,783,506.72
  6. Step 6: Final answer
    x = 500,065,776.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.