Home / 12,115,831.80-18,173,747.70-8,714,609.40

Finding the Fourth Proportional to 12,115,831.80, 18,173,747.70 and 8,714,609.40

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Solution

The fourth proportional to 12,115,831.80, 18,173,747.70 and 8,714,609.40 is: 13,071,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,831.80 : 18,173,747.70 = 8,714,609.40 : x
  2. Step 2: Convert to fraction form
    12,115,831.80/18,173,747.70 = 8,714,609.40/x
  3. Step 3: Cross multiply
    12,115,831.80x = 18,173,747.70 × 8,714,609.40
  4. Step 4: Simplify right side
    12,115,831.80x = 158,377,112,539,648.38
  5. Step 5: Solve for x
    x = 158,377,112,539,648.38/12,115,831.80
  6. Step 6: Final answer
    x = 13,071,914.10

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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.