Home / 509,980,305.40-764,970,458.10-164,968,808.20

Finding the Fourth Proportional to 509,980,305.40, 764,970,458.10 and 164,968,808.20

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Solution

The fourth proportional to 509,980,305.40, 764,970,458.10 and 164,968,808.20 is: 247,453,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,980,305.40 : 764,970,458.10 = 164,968,808.20 : x
  2. Step 2: Convert to fraction form
    509,980,305.40/764,970,458.10 = 164,968,808.20/x
  3. Step 3: Cross multiply
    509,980,305.40x = 764,970,458.10 × 164,968,808.20
  4. Step 4: Simplify right side
    509,980,305.40x = 126,196,264,780,965,024
  5. Step 5: Solve for x
    x = 126,196,264,780,965,024/509,980,305.40
  6. Step 6: Final answer
    x = 247,453,212.30

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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.