Home / 509,335,903.20-764,003,854.80-181,968,247.20

Finding the Fourth Proportional to 509,335,903.20, 764,003,854.80 and 181,968,247.20

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Solution

The fourth proportional to 509,335,903.20, 764,003,854.80 and 181,968,247.20 is: 272,952,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,335,903.20 : 764,003,854.80 = 181,968,247.20 : x
  2. Step 2: Convert to fraction form
    509,335,903.20/764,003,854.80 = 181,968,247.20/x
  3. Step 3: Cross multiply
    509,335,903.20x = 764,003,854.80 × 181,968,247.20
  4. Step 4: Simplify right side
    509,335,903.20x = 139,024,442,311,999,296
  5. Step 5: Solve for x
    x = 139,024,442,311,999,296/509,335,903.20
  6. Step 6: Final answer
    x = 272,952,370.80

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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.