Home / 12,308,078.80-18,435,546.15-8,003,406.70

Finding the Fourth Proportional to 12,308,078.80, 18,435,546.15 and 8,003,406.70

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Solution

The fourth proportional to 12,308,078.80, 18,435,546.15 and 8,003,406.70 is: 11,987,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308,078.80 : 18,435,546.15 = 8,003,406.70 : x
  2. Step 2: Convert to fraction form
    12,308,078.80/18,435,546.15 = 8,003,406.70/x
  3. Step 3: Cross multiply
    12,308,078.80x = 18,435,546.15 × 8,003,406.70
  4. Step 4: Simplify right side
    12,308,078.80x = 147,547,173,575,069.19
  5. Step 5: Solve for x
    x = 147,547,173,575,069.19/12,308,078.80
  6. Step 6: Final answer
    x = 11,987,831.41

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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.