Home / 77,100,079.68-115,473,604.32-38,772,486.72

Finding the Fourth Proportional to 77,100,079.68, 115,473,604.32 and 38,772,486.72

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Solution

The fourth proportional to 77,100,079.68, 115,473,604.32 and 38,772,486.72 is: 58,069,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,100,079.68 : 115,473,604.32 = 38,772,486.72 : x
  2. Step 2: Convert to fraction form
    77,100,079.68/115,473,604.32 = 38,772,486.72/x
  3. Step 3: Cross multiply
    77,100,079.68x = 115,473,604.32 × 38,772,486.72
  4. Step 4: Simplify right side
    77,100,079.68x = 4,477,198,790,007,734
  5. Step 5: Solve for x
    x = 4,477,198,790,007,734/77,100,079.68
  6. Step 6: Final answer
    x = 58,069,963.20

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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.