Home / 143,245,710.08-214,921,769-99,503,420.56

Finding the Fourth Proportional to 143,245,710.08, 214,921,769 and 99,503,420.56

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Solution

The fourth proportional to 143,245,710.08, 214,921,769 and 99,503,420.56 is: 149,292,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,245,710.08 : 214,921,769 = 99,503,420.56 : x
  2. Step 2: Convert to fraction form
    143,245,710.08/214,921,769 = 99,503,420.56/x
  3. Step 3: Cross multiply
    143,245,710.08x = 214,921,769 × 99,503,420.56
  4. Step 4: Simplify right side
    143,245,710.08x = 21,385,451,168,306,172
  5. Step 5: Solve for x
    x = 21,385,451,168,306,172/143,245,710.08
  6. Step 6: Final answer
    x = 149,292,088.09

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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.