Home / 143,910,732.86-198,596,811.46-77,831,230.77

Finding the Fourth Proportional to 143,910,732.86, 198,596,811.46 and 77,831,230.77

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Solution

The fourth proportional to 143,910,732.86, 198,596,811.46 and 77,831,230.77 is: 107,407,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,910,732.86 : 198,596,811.46 = 77,831,230.77 : x
  2. Step 2: Convert to fraction form
    143,910,732.86/198,596,811.46 = 77,831,230.77/x
  3. Step 3: Cross multiply
    143,910,732.86x = 198,596,811.46 × 77,831,230.77
  4. Step 4: Simplify right side
    143,910,732.86x = 15,457,034,262,541,436
  5. Step 5: Solve for x
    x = 15,457,034,262,541,436/143,910,732.86
  6. Step 6: Final answer
    x = 107,407,098.52

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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.