Home / 13,239,461.48-19,889,086.21-7,851,645.72

Finding the Fourth Proportional to 13,239,461.48, 19,889,086.21 and 7,851,645.72

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Solution

The fourth proportional to 13,239,461.48, 19,889,086.21 and 7,851,645.72 is: 11,795,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239,461.48 : 19,889,086.21 = 7,851,645.72 : x
  2. Step 2: Convert to fraction form
    13,239,461.48/19,889,086.21 = 7,851,645.72/x
  3. Step 3: Cross multiply
    13,239,461.48x = 19,889,086.21 × 7,851,645.72
  4. Step 4: Simplify right side
    13,239,461.48x = 156,162,058,595,828.41
  5. Step 5: Solve for x
    x = 156,162,058,595,828.41/13,239,461.48
  6. Step 6: Final answer
    x = 11,795,197.18

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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.