Home / 13,362,280.21-18,440,355.30-7,854,644.53

Finding the Fourth Proportional to 13,362,280.21, 18,440,355.30 and 7,854,644.53

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Solution

The fourth proportional to 13,362,280.21, 18,440,355.30 and 7,854,644.53 is: 10,839,649.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362,280.21 : 18,440,355.30 = 7,854,644.53 : x
  2. Step 2: Convert to fraction form
    13,362,280.21/18,440,355.30 = 7,854,644.53/x
  3. Step 3: Cross multiply
    13,362,280.21x = 18,440,355.30 × 7,854,644.53
  4. Step 4: Simplify right side
    13,362,280.21x = 144,842,435,888,401.53
  5. Step 5: Solve for x
    x = 144,842,435,888,401.53/13,362,280.21
  6. Step 6: Final answer
    x = 10,839,649.64

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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.