Home / 143,910,733.25-198,596,812.03-77,831,231.20

Finding the Fourth Proportional to 143,910,733.25, 198,596,812.03 and 77,831,231.20

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Solution

The fourth proportional to 143,910,733.25, 198,596,812.03 and 77,831,231.20 is: 107,407,099.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,910,733.25 : 198,596,812.03 = 77,831,231.20 : x
  2. Step 2: Convert to fraction form
    143,910,733.25/198,596,812.03 = 77,831,231.20/x
  3. Step 3: Cross multiply
    143,910,733.25x = 198,596,812.03 × 77,831,231.20
  4. Step 4: Simplify right side
    143,910,733.25x = 15,457,034,391,998,802
  5. Step 5: Solve for x
    x = 15,457,034,391,998,802/143,910,733.25
  6. Step 6: Final answer
    x = 107,407,099.13

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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.