Home / 425,413,999.10-638,120,998.65-364,191,995.90

Finding the Fourth Proportional to 425,413,999.10, 638,120,998.65 and 364,191,995.90

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Solution

The fourth proportional to 425,413,999.10, 638,120,998.65 and 364,191,995.90 is: 546,287,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,413,999.10 : 638,120,998.65 = 364,191,995.90 : x
  2. Step 2: Convert to fraction form
    425,413,999.10/638,120,998.65 = 364,191,995.90/x
  3. Step 3: Cross multiply
    425,413,999.10x = 638,120,998.65 × 364,191,995.90
  4. Step 4: Simplify right side
    425,413,999.10x = 232,398,560,124,044,672
  5. Step 5: Solve for x
    x = 232,398,560,124,044,672/425,413,999.10
  6. Step 6: Final answer
    x = 546,287,993.85

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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.