Home / 143,544,765.84-198,089,249.40-81,663,785.52

Finding the Fourth Proportional to 143,544,765.84, 198,089,249.40 and 81,663,785.52

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Solution

The fourth proportional to 143,544,765.84, 198,089,249.40 and 81,663,785.52 is: 112,694,586.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,544,765.84 : 198,089,249.40 = 81,663,785.52 : x
  2. Step 2: Convert to fraction form
    143,544,765.84/198,089,249.40 = 81,663,785.52/x
  3. Step 3: Cross multiply
    143,544,765.84x = 198,089,249.40 × 81,663,785.52
  4. Step 4: Simplify right side
    143,544,765.84x = 16,176,717,976,819,388
  5. Step 5: Solve for x
    x = 16,176,717,976,819,388/143,544,765.84
  6. Step 6: Final answer
    x = 112,694,586.13

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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.