Home / 77,300,932.90-115,965,396.15-38,865,720.10

Finding the Fourth Proportional to 77,300,932.90, 115,965,396.15 and 38,865,720.10

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Solution

The fourth proportional to 77,300,932.90, 115,965,396.15 and 38,865,720.10 is: 58,305,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,300,932.90 : 115,965,396.15 = 38,865,720.10 : x
  2. Step 2: Convert to fraction form
    77,300,932.90/115,965,396.15 = 38,865,720.10/x
  3. Step 3: Cross multiply
    77,300,932.90x = 115,965,396.15 × 38,865,720.10
  4. Step 4: Simplify right side
    77,300,932.90x = 4,507,078,628,051,518
  5. Step 5: Solve for x
    x = 4,507,078,628,051,518/77,300,932.90
  6. Step 6: Final answer
    x = 58,305,617.53

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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.