Home / 79,113,578.63-109,149,416.01-49,747,145.87

Finding the Fourth Proportional to 79,113,578.63, 109,149,416.01 and 49,747,145.87

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Solution

The fourth proportional to 79,113,578.63, 109,149,416.01 and 49,747,145.87 is: 68,633,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,113,578.63 : 109,149,416.01 = 49,747,145.87 : x
  2. Step 2: Convert to fraction form
    79,113,578.63/109,149,416.01 = 49,747,145.87/x
  3. Step 3: Cross multiply
    79,113,578.63x = 109,149,416.01 × 49,747,145.87
  4. Step 4: Simplify right side
    79,113,578.63x = 5,429,871,920,147,657
  5. Step 5: Solve for x
    x = 5,429,871,920,147,657/79,113,578.63
  6. Step 6: Final answer
    x = 68,633,880.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.