Home / 13,101,665.78-18,080,056.60-7,141,123.95

Finding the Fourth Proportional to 13,101,665.78, 18,080,056.60 and 7,141,123.95

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Solution

The fourth proportional to 13,101,665.78, 18,080,056.60 and 7,141,123.95 is: 9,854,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101,665.78 : 18,080,056.60 = 7,141,123.95 : x
  2. Step 2: Convert to fraction form
    13,101,665.78/18,080,056.60 = 7,141,123.95/x
  3. Step 3: Cross multiply
    13,101,665.78x = 18,080,056.60 × 7,141,123.95
  4. Step 4: Simplify right side
    13,101,665.78x = 129,111,925,203,615.58
  5. Step 5: Solve for x
    x = 129,111,925,203,615.58/13,101,665.78
  6. Step 6: Final answer
    x = 9,854,619.05

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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.