Home / 5,275,365.09-7,912,900-1,681,347.70

Finding the Fourth Proportional to 5,275,365.09, 7,912,900 and 1,681,347.70

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Solution

The fourth proportional to 5,275,365.09, 7,912,900 and 1,681,347.70 is: 2,521,974.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275,365.09 : 7,912,900 = 1,681,347.70 : x
  2. Step 2: Convert to fraction form
    5,275,365.09/7,912,900 = 1,681,347.70/x
  3. Step 3: Cross multiply
    5,275,365.09x = 7,912,900 × 1,681,347.70
  4. Step 4: Simplify right side
    5,275,365.09x = 13,304,336,215,330
  5. Step 5: Solve for x
    x = 13,304,336,215,330/5,275,365.09
  6. Step 6: Final answer
    x = 2,521,974.50

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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.