Home / 315,753,173.15-435,690,971.21-181,765,189.70

Finding the Fourth Proportional to 315,753,173.15, 435,690,971.21 and 181,765,189.70

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Solution

The fourth proportional to 315,753,173.15, 435,690,971.21 and 181,765,189.70 is: 250,808,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,753,173.15 : 435,690,971.21 = 181,765,189.70 : x
  2. Step 2: Convert to fraction form
    315,753,173.15/435,690,971.21 = 181,765,189.70/x
  3. Step 3: Cross multiply
    315,753,173.15x = 435,690,971.21 × 181,765,189.70
  4. Step 4: Simplify right side
    315,753,173.15x = 79,193,452,029,475,600
  5. Step 5: Solve for x
    x = 79,193,452,029,475,600/315,753,173.15
  6. Step 6: Final answer
    x = 250,808,095.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.