Home / 52,085,384.80-78,128,077.20-49,431,176.80

Finding the Fourth Proportional to 52,085,384.80, 78,128,077.20 and 49,431,176.80

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Solution

The fourth proportional to 52,085,384.80, 78,128,077.20 and 49,431,176.80 is: 74,146,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,085,384.80 : 78,128,077.20 = 49,431,176.80 : x
  2. Step 2: Convert to fraction form
    52,085,384.80/78,128,077.20 = 49,431,176.80/x
  3. Step 3: Cross multiply
    52,085,384.80x = 78,128,077.20 × 49,431,176.80
  4. Step 4: Simplify right side
    52,085,384.80x = 3,861,962,797,117,249
  5. Step 5: Solve for x
    x = 3,861,962,797,117,249/52,085,384.80
  6. Step 6: Final answer
    x = 74,146,765.20

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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.