Home / 143,650,930.14-198,238,888.98-80,927,780.67

Finding the Fourth Proportional to 143,650,930.14, 198,238,888.98 and 80,927,780.67

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Solution

The fourth proportional to 143,650,930.14, 198,238,888.98 and 80,927,780.67 is: 111,680,678.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,650,930.14 : 198,238,888.98 = 80,927,780.67 : x
  2. Step 2: Convert to fraction form
    143,650,930.14/198,238,888.98 = 80,927,780.67/x
  3. Step 3: Cross multiply
    143,650,930.14x = 198,238,888.98 × 80,927,780.67
  4. Step 4: Simplify right side
    143,650,930.14x = 16,043,033,327,637,920
  5. Step 5: Solve for x
    x = 16,043,033,327,637,920/143,650,930.14
  6. Step 6: Final answer
    x = 111,680,678.38

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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.