Home / 13,122,661.20-19,683,991.80-9,721,438.80

Finding the Fourth Proportional to 13,122,661.20, 19,683,991.80 and 9,721,438.80

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Solution

The fourth proportional to 13,122,661.20, 19,683,991.80 and 9,721,438.80 is: 14,582,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,661.20 : 19,683,991.80 = 9,721,438.80 : x
  2. Step 2: Convert to fraction form
    13,122,661.20/19,683,991.80 = 9,721,438.80/x
  3. Step 3: Cross multiply
    13,122,661.20x = 19,683,991.80 × 9,721,438.80
  4. Step 4: Simplify right side
    13,122,661.20x = 191,356,721,623,401.88
  5. Step 5: Solve for x
    x = 191,356,721,623,401.88/13,122,661.20
  6. Step 6: Final answer
    x = 14,582,158.20

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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.