Home / 12,388,991.40-18,583,487.10-9,838,074.60

Finding the Fourth Proportional to 12,388,991.40, 18,583,487.10 and 9,838,074.60

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Solution

The fourth proportional to 12,388,991.40, 18,583,487.10 and 9,838,074.60 is: 14,757,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,388,991.40 : 18,583,487.10 = 9,838,074.60 : x
  2. Step 2: Convert to fraction form
    12,388,991.40/18,583,487.10 = 9,838,074.60/x
  3. Step 3: Cross multiply
    12,388,991.40x = 18,583,487.10 × 9,838,074.60
  4. Step 4: Simplify right side
    12,388,991.40x = 182,825,732,417,937.66
  5. Step 5: Solve for x
    x = 182,825,732,417,937.66/12,388,991.40
  6. Step 6: Final answer
    x = 14,757,111.90

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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.