Home / 13,182,811.76-18,192,799.92-7,381,541.60

Finding the Fourth Proportional to 13,182,811.76, 18,192,799.92 and 7,381,541.60

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Solution

The fourth proportional to 13,182,811.76, 18,192,799.92 and 7,381,541.60 is: 10,186,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182,811.76 : 18,192,799.92 = 7,381,541.60 : x
  2. Step 2: Convert to fraction form
    13,182,811.76/18,192,799.92 = 7,381,541.60/x
  3. Step 3: Cross multiply
    13,182,811.76x = 18,192,799.92 × 7,381,541.60
  4. Step 4: Simplify right side
    13,182,811.76x = 134,290,909,429,956.67
  5. Step 5: Solve for x
    x = 134,290,909,429,956.67/13,182,811.76
  6. Step 6: Final answer
    x = 10,186,818.40

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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.