Home / 265,700,020.45-398,523,121.87-71,631,053.28

Finding the Fourth Proportional to 265,700,020.45, 398,523,121.87 and 71,631,053.28

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Solution

The fourth proportional to 265,700,020.45, 398,523,121.87 and 71,631,053.28 is: 107,439,325.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,700,020.45 : 398,523,121.87 = 71,631,053.28 : x
  2. Step 2: Convert to fraction form
    265,700,020.45/398,523,121.87 = 71,631,053.28/x
  3. Step 3: Cross multiply
    265,700,020.45x = 398,523,121.87 × 71,631,053.28
  4. Step 4: Simplify right side
    265,700,020.45x = 28,546,630,975,175,568
  5. Step 5: Solve for x
    x = 28,546,630,975,175,568/265,700,020.45
  6. Step 6: Final answer
    x = 107,439,325.47

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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.