Home / 7,728,643.40-11,592,965.10-3,902,268.20

Finding the Fourth Proportional to 7,728,643.40, 11,592,965.10 and 3,902,268.20

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Solution

The fourth proportional to 7,728,643.40, 11,592,965.10 and 3,902,268.20 is: 5,853,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,643.40 : 11,592,965.10 = 3,902,268.20 : x
  2. Step 2: Convert to fraction form
    7,728,643.40/11,592,965.10 = 3,902,268.20/x
  3. Step 3: Cross multiply
    7,728,643.40x = 11,592,965.10 × 3,902,268.20
  4. Step 4: Simplify right side
    7,728,643.40x = 45,238,859,053,439.82
  5. Step 5: Solve for x
    x = 45,238,859,053,439.82/7,728,643.40
  6. Step 6: Final answer
    x = 5,853,402.30

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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.