Home / 140,019,699.20-210,029,548.80-121,145,331.20

Finding the Fourth Proportional to 140,019,699.20, 210,029,548.80 and 121,145,331.20

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Solution

The fourth proportional to 140,019,699.20, 210,029,548.80 and 121,145,331.20 is: 181,717,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,019,699.20 : 210,029,548.80 = 121,145,331.20 : x
  2. Step 2: Convert to fraction form
    140,019,699.20/210,029,548.80 = 121,145,331.20/x
  3. Step 3: Cross multiply
    140,019,699.20x = 210,029,548.80 × 121,145,331.20
  4. Step 4: Simplify right side
    140,019,699.20x = 25,444,099,251,162,564
  5. Step 5: Solve for x
    x = 25,444,099,251,162,564/140,019,699.20
  6. Step 6: Final answer
    x = 181,717,996.80

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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.