Home / 9,071,831.40-13,607,747.10-8,378,989.80

Finding the Fourth Proportional to 9,071,831.40, 13,607,747.10 and 8,378,989.80

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Solution

The fourth proportional to 9,071,831.40, 13,607,747.10 and 8,378,989.80 is: 12,568,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,071,831.40 : 13,607,747.10 = 8,378,989.80 : x
  2. Step 2: Convert to fraction form
    9,071,831.40/13,607,747.10 = 8,378,989.80/x
  3. Step 3: Cross multiply
    9,071,831.40x = 13,607,747.10 × 8,378,989.80
  4. Step 4: Simplify right side
    9,071,831.40x = 114,019,174,151,879.58
  5. Step 5: Solve for x
    x = 114,019,174,151,879.58/9,071,831.40
  6. Step 6: Final answer
    x = 12,568,484.70

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Similar ratio
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1.5x scale

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.