Home / 13,065,103.88-18,030,853.30-7,838,307.84

Finding the Fourth Proportional to 13,065,103.88, 18,030,853.30 and 7,838,307.84

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Solution

The fourth proportional to 13,065,103.88, 18,030,853.30 and 7,838,307.84 is: 10,817,470.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065,103.88 : 18,030,853.30 = 7,838,307.84 : x
  2. Step 2: Convert to fraction form
    13,065,103.88/18,030,853.30 = 7,838,307.84/x
  3. Step 3: Cross multiply
    13,065,103.88x = 18,030,853.30 × 7,838,307.84
  4. Step 4: Simplify right side
    13,065,103.88x = 141,331,378,783,279.88
  5. Step 5: Solve for x
    x = 141,331,378,783,279.88/13,065,103.88
  6. Step 6: Final answer
    x = 10,817,470.73

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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.