Home / 140,019,706.70-210,029,560.05-121,145,338.70

Finding the Fourth Proportional to 140,019,706.70, 210,029,560.05 and 121,145,338.70

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Solution

The fourth proportional to 140,019,706.70, 210,029,560.05 and 121,145,338.70 is: 181,718,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,019,706.70 : 210,029,560.05 = 121,145,338.70 : x
  2. Step 2: Convert to fraction form
    140,019,706.70/210,029,560.05 = 121,145,338.70/x
  3. Step 3: Cross multiply
    140,019,706.70x = 210,029,560.05 × 121,145,338.70
  4. Step 4: Simplify right side
    140,019,706.70x = 25,444,102,189,269,240
  5. Step 5: Solve for x
    x = 25,444,102,189,269,240/140,019,706.70
  6. Step 6: Final answer
    x = 181,718,008.05

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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.