Home / 509,335,999.20-764,003,998.80-181,968,343.20

Finding the Fourth Proportional to 509,335,999.20, 764,003,998.80 and 181,968,343.20

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Solution

The fourth proportional to 509,335,999.20, 764,003,998.80 and 181,968,343.20 is: 272,952,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,335,999.20 : 764,003,998.80 = 181,968,343.20 : x
  2. Step 2: Convert to fraction form
    509,335,999.20/764,003,998.80 = 181,968,343.20/x
  3. Step 3: Cross multiply
    509,335,999.20x = 764,003,998.80 × 181,968,343.20
  4. Step 4: Simplify right side
    509,335,999.20x = 139,024,541,859,810,768
  5. Step 5: Solve for x
    x = 139,024,541,859,810,768/509,335,999.20
  6. Step 6: Final answer
    x = 272,952,514.80

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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.