Home / 77,287,491.40-115,945,233.90-38,852,278.60

Finding the Fourth Proportional to 77,287,491.40, 115,945,233.90 and 38,852,278.60

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Solution

The fourth proportional to 77,287,491.40, 115,945,233.90 and 38,852,278.60 is: 58,285,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,287,491.40 : 115,945,233.90 = 38,852,278.60 : x
  2. Step 2: Convert to fraction form
    77,287,491.40/115,945,233.90 = 38,852,278.60/x
  3. Step 3: Cross multiply
    77,287,491.40x = 115,945,233.90 × 38,852,278.60
  4. Step 4: Simplify right side
    77,287,491.40x = 4,504,736,529,824,965
  5. Step 5: Solve for x
    x = 4,504,736,529,824,965/77,287,491.40
  6. Step 6: Final answer
    x = 58,285,454.07

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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.