Home / 266,119,111.20-399,178,666.80-122,791,879.20

Finding the Fourth Proportional to 266,119,111.20, 399,178,666.80 and 122,791,879.20

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Solution

The fourth proportional to 266,119,111.20, 399,178,666.80 and 122,791,879.20 is: 184,187,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,119,111.20 : 399,178,666.80 = 122,791,879.20 : x
  2. Step 2: Convert to fraction form
    266,119,111.20/399,178,666.80 = 122,791,879.20/x
  3. Step 3: Cross multiply
    266,119,111.20x = 399,178,666.80 × 122,791,879.20
  4. Step 4: Simplify right side
    266,119,111.20x = 49,015,898,632,922,656
  5. Step 5: Solve for x
    x = 49,015,898,632,922,656/266,119,111.20
  6. Step 6: Final answer
    x = 184,187,818.80

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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.