Home / 9,308,612.80-13,962,919.20-6,438,831.40

Finding the Fourth Proportional to 9,308,612.80, 13,962,919.20 and 6,438,831.40

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Solution

The fourth proportional to 9,308,612.80, 13,962,919.20 and 6,438,831.40 is: 9,658,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,308,612.80 : 13,962,919.20 = 6,438,831.40 : x
  2. Step 2: Convert to fraction form
    9,308,612.80/13,962,919.20 = 6,438,831.40/x
  3. Step 3: Cross multiply
    9,308,612.80x = 13,962,919.20 × 6,438,831.40
  4. Step 4: Simplify right side
    9,308,612.80x = 89,904,882,580,622.88
  5. Step 5: Solve for x
    x = 89,904,882,580,622.88/9,308,612.80
  6. Step 6: Final answer
    x = 9,658,247.10

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Double scale
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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.