Home / 408,475,307.42-563,618,829.86-243,478,229.66

Finding the Fourth Proportional to 408,475,307.42, 563,618,829.86 and 243,478,229.66

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Solution

The fourth proportional to 408,475,307.42, 563,618,829.86 and 243,478,229.66 is: 335,954,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,475,307.42 : 563,618,829.86 = 243,478,229.66 : x
  2. Step 2: Convert to fraction form
    408,475,307.42/563,618,829.86 = 243,478,229.66/x
  3. Step 3: Cross multiply
    408,475,307.42x = 563,618,829.86 × 243,478,229.66
  4. Step 4: Simplify right side
    408,475,307.42x = 137,228,914,893,318,064
  5. Step 5: Solve for x
    x = 137,228,914,893,318,064/408,475,307.42
  6. Step 6: Final answer
    x = 335,954,003.59

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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.