Home / 77,436,331.16-116,153,709.41-19,928,378.84

Finding the Fourth Proportional to 77,436,331.16, 116,153,709.41 and 19,928,378.84

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Solution

The fourth proportional to 77,436,331.16, 116,153,709.41 and 19,928,378.84 is: 29,892,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,436,331.16 : 116,153,709.41 = 19,928,378.84 : x
  2. Step 2: Convert to fraction form
    77,436,331.16/116,153,709.41 = 19,928,378.84/x
  3. Step 3: Cross multiply
    77,436,331.16x = 116,153,709.41 × 19,928,378.84
  4. Step 4: Simplify right side
    77,436,331.16x = 2,314,755,124,262,805.50
  5. Step 5: Solve for x
    x = 2,314,755,124,262,805.50/77,436,331.16
  6. Step 6: Final answer
    x = 29,892,365.63

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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.