Home / 143,218,221.20-214,827,331.80-52,406,982.80

Finding the Fourth Proportional to 143,218,221.20, 214,827,331.80 and 52,406,982.80

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Solution

The fourth proportional to 143,218,221.20, 214,827,331.80 and 52,406,982.80 is: 78,610,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,218,221.20 : 214,827,331.80 = 52,406,982.80 : x
  2. Step 2: Convert to fraction form
    143,218,221.20/214,827,331.80 = 52,406,982.80/x
  3. Step 3: Cross multiply
    143,218,221.20x = 214,827,331.80 × 52,406,982.80
  4. Step 4: Simplify right side
    143,218,221.20x = 11,258,452,282,612,494
  5. Step 5: Solve for x
    x = 11,258,452,282,612,494/143,218,221.20
  6. Step 6: Final answer
    x = 78,610,474.20

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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.