Home / 266,119,009.40-399,178,514.10-120,622,273.40

Finding the Fourth Proportional to 266,119,009.40, 399,178,514.10 and 120,622,273.40

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Solution

The fourth proportional to 266,119,009.40, 399,178,514.10 and 120,622,273.40 is: 180,933,410.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,119,009.40 : 399,178,514.10 = 120,622,273.40 : x
  2. Step 2: Convert to fraction form
    266,119,009.40/399,178,514.10 = 120,622,273.40/x
  3. Step 3: Cross multiply
    266,119,009.40x = 399,178,514.10 × 120,622,273.40
  4. Step 4: Simplify right side
    266,119,009.40x = 48,149,819,863,175,960
  5. Step 5: Solve for x
    x = 48,149,819,863,175,960/266,119,009.40
  6. Step 6: Final answer
    x = 180,933,410.10

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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.