Home / 5,128,796.80-7,693,886.40-1,764,035.20

Finding the Fourth Proportional to 5,128,796.80, 7,693,886.40 and 1,764,035.20

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Solution

The fourth proportional to 5,128,796.80, 7,693,886.40 and 1,764,035.20 is: 2,646,290.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,796.80 : 7,693,886.40 = 1,764,035.20 : x
  2. Step 2: Convert to fraction form
    5,128,796.80/7,693,886.40 = 1,764,035.20/x
  3. Step 3: Cross multiply
    5,128,796.80x = 7,693,886.40 × 1,764,035.20
  4. Step 4: Simplify right side
    5,128,796.80x = 13,572,286,434,401.28
  5. Step 5: Solve for x
    x = 13,572,286,434,401.28/5,128,796.80
  6. Step 6: Final answer
    x = 2,646,290.54

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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.