Home / 463,781,543.32-640,326,720.40-356,299,435.56

Finding the Fourth Proportional to 463,781,543.32, 640,326,720.40 and 356,299,435.56

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Solution

The fourth proportional to 463,781,543.32, 640,326,720.40 and 356,299,435.56 is: 491,929,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,781,543.32 : 640,326,720.40 = 356,299,435.56 : x
  2. Step 2: Convert to fraction form
    463,781,543.32/640,326,720.40 = 356,299,435.56/x
  3. Step 3: Cross multiply
    463,781,543.32x = 640,326,720.40 × 356,299,435.56
  4. Step 4: Simplify right side
    463,781,543.32x = 228,148,049,056,022,432
  5. Step 5: Solve for x
    x = 228,148,049,056,022,432/463,781,543.32
  6. Step 6: Final answer
    x = 491,929,988.04

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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.