Home / 13,426,521.40-20,116,065.30-12,982,511.80

Finding the Fourth Proportional to 13,426,521.40, 20,116,065.30 and 12,982,511.80

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Solution

The fourth proportional to 13,426,521.40, 20,116,065.30 and 12,982,511.80 is: 19,450,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426,521.40 : 20,116,065.30 = 12,982,511.80 : x
  2. Step 2: Convert to fraction form
    13,426,521.40/20,116,065.30 = 12,982,511.80/x
  3. Step 3: Cross multiply
    13,426,521.40x = 20,116,065.30 × 12,982,511.80
  4. Step 4: Simplify right side
    13,426,521.40x = 261,157,055,126,820.56
  5. Step 5: Solve for x
    x = 261,157,055,126,820.56/13,426,521.40
  6. Step 6: Final answer
    x = 19,450,835.20

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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.