Home / 12,005,721.99-18,018,293.27-9,303,639.75

Finding the Fourth Proportional to 12,005,721.99, 18,018,293.27 and 9,303,639.75

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Solution

The fourth proportional to 12,005,721.99, 18,018,293.27 and 9,303,639.75 is: 13,962,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005,721.99 : 18,018,293.27 = 9,303,639.75 : x
  2. Step 2: Convert to fraction form
    12,005,721.99/18,018,293.27 = 9,303,639.75/x
  3. Step 3: Cross multiply
    12,005,721.99x = 18,018,293.27 × 9,303,639.75
  4. Step 4: Simplify right side
    12,005,721.99x = 167,635,709,447,411.28
  5. Step 5: Solve for x
    x = 167,635,709,447,411.28/12,005,721.99
  6. Step 6: Final answer
    x = 13,962,984.45

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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.