Home / 3,130,120.20-4,319,337.78-1,771,912.20

Finding the Fourth Proportional to 3,130,120.20, 4,319,337.78 and 1,771,912.20

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Solution

The fourth proportional to 3,130,120.20, 4,319,337.78 and 1,771,912.20 is: 2,445,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130,120.20 : 4,319,337.78 = 1,771,912.20 : x
  2. Step 2: Convert to fraction form
    3,130,120.20/4,319,337.78 = 1,771,912.20/x
  3. Step 3: Cross multiply
    3,130,120.20x = 4,319,337.78 × 1,771,912.20
  4. Step 4: Simplify right side
    3,130,120.20x = 7,653,487,308,302.92
  5. Step 5: Solve for x
    x = 7,653,487,308,302.92/3,130,120.20
  6. Step 6: Final answer
    x = 2,445,109.71

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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.