Home / 12,662,989.40-18,989,831.16-4,351,435.83

Finding the Fourth Proportional to 12,662,989.40, 18,989,831.16 and 4,351,435.83

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Solution

The fourth proportional to 12,662,989.40, 18,989,831.16 and 4,351,435.83 is: 6,525,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662,989.40 : 18,989,831.16 = 4,351,435.83 : x
  2. Step 2: Convert to fraction form
    12,662,989.40/18,989,831.16 = 4,351,435.83/x
  3. Step 3: Cross multiply
    12,662,989.40x = 18,989,831.16 × 4,351,435.83
  4. Step 4: Simplify right side
    12,662,989.40x = 82,633,031,715,274.47
  5. Step 5: Solve for x
    x = 82,633,031,715,274.47/12,662,989.40
  6. Step 6: Final answer
    x = 6,525,554.83

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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.