Home / 13,065,102.88-18,030,851.92-7,838,306.84

Finding the Fourth Proportional to 13,065,102.88, 18,030,851.92 and 7,838,306.84

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Solution

The fourth proportional to 13,065,102.88, 18,030,851.92 and 7,838,306.84 is: 10,817,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065,102.88 : 18,030,851.92 = 7,838,306.84 : x
  2. Step 2: Convert to fraction form
    13,065,102.88/18,030,851.92 = 7,838,306.84/x
  3. Step 3: Cross multiply
    13,065,102.88x = 18,030,851.92 × 7,838,306.84
  4. Step 4: Simplify right side
    13,065,102.88x = 141,331,349,935,563.16
  5. Step 5: Solve for x
    x = 141,331,349,935,563.16/13,065,102.88
  6. Step 6: Final answer
    x = 10,817,469.35

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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.