Home / 315,575,999.20-473,363,998.80-85,544,714.80

Finding the Fourth Proportional to 315,575,999.20, 473,363,998.80 and 85,544,714.80

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Solution

The fourth proportional to 315,575,999.20, 473,363,998.80 and 85,544,714.80 is: 128,317,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,575,999.20 : 473,363,998.80 = 85,544,714.80 : x
  2. Step 2: Convert to fraction form
    315,575,999.20/473,363,998.80 = 85,544,714.80/x
  3. Step 3: Cross multiply
    315,575,999.20x = 473,363,998.80 × 85,544,714.80
  4. Step 4: Simplify right side
    315,575,999.20x = 40,493,788,273,933,544
  5. Step 5: Solve for x
    x = 40,493,788,273,933,544/315,575,999.20
  6. Step 6: Final answer
    x = 128,317,072.20

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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.