Home / 77,004,074.60-115,450,124.70-31,542,468.20

Finding the Fourth Proportional to 77,004,074.60, 115,450,124.70 and 31,542,468.20

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Solution

The fourth proportional to 77,004,074.60, 115,450,124.70 and 31,542,468.20 is: 47,290,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,004,074.60 : 115,450,124.70 = 31,542,468.20 : x
  2. Step 2: Convert to fraction form
    77,004,074.60/115,450,124.70 = 31,542,468.20/x
  3. Step 3: Cross multiply
    77,004,074.60x = 115,450,124.70 × 31,542,468.20
  4. Step 4: Simplify right side
    77,004,074.60x = 3,641,581,887,035,784.50
  5. Step 5: Solve for x
    x = 3,641,581,887,035,784.50/77,004,074.60
  6. Step 6: Final answer
    x = 47,290,768.78

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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.