Home / 47,921,246.80-71,881,870.20-19,188,003.40

Finding the Fourth Proportional to 47,921,246.80, 71,881,870.20 and 19,188,003.40

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Solution

The fourth proportional to 47,921,246.80, 71,881,870.20 and 19,188,003.40 is: 28,782,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921,246.80 : 71,881,870.20 = 19,188,003.40 : x
  2. Step 2: Convert to fraction form
    47,921,246.80/71,881,870.20 = 19,188,003.40/x
  3. Step 3: Cross multiply
    47,921,246.80x = 71,881,870.20 × 19,188,003.40
  4. Step 4: Simplify right side
    47,921,246.80x = 1,379,269,569,795,958.75
  5. Step 5: Solve for x
    x = 1,379,269,569,795,958.75/47,921,246.80
  6. Step 6: Final answer
    x = 28,782,005.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.