Home / 426,506,249.70-639,759,374.55-361,936,168.20

Finding the Fourth Proportional to 426,506,249.70, 639,759,374.55 and 361,936,168.20

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Solution

The fourth proportional to 426,506,249.70, 639,759,374.55 and 361,936,168.20 is: 542,904,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,506,249.70 : 639,759,374.55 = 361,936,168.20 : x
  2. Step 2: Convert to fraction form
    426,506,249.70/639,759,374.55 = 361,936,168.20/x
  3. Step 3: Cross multiply
    426,506,249.70x = 639,759,374.55 × 361,936,168.20
  4. Step 4: Simplify right side
    426,506,249.70x = 231,552,056,594,655,584
  5. Step 5: Solve for x
    x = 231,552,056,594,655,584/426,506,249.70
  6. Step 6: Final answer
    x = 542,904,252.30

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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.