Home / 8,683,820.91-11,975,831.10-5,420,938.41

Finding the Fourth Proportional to 8,683,820.91, 11,975,831.10 and 5,420,938.41

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Solution

The fourth proportional to 8,683,820.91, 11,975,831.10 and 5,420,938.41 is: 7,475,999.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683,820.91 : 11,975,831.10 = 5,420,938.41 : x
  2. Step 2: Convert to fraction form
    8,683,820.91/11,975,831.10 = 5,420,938.41/x
  3. Step 3: Cross multiply
    8,683,820.91x = 11,975,831.10 × 5,420,938.41
  4. Step 4: Simplify right side
    8,683,820.91x = 64,920,242,801,662.55
  5. Step 5: Solve for x
    x = 64,920,242,801,662.55/8,683,820.91
  6. Step 6: Final answer
    x = 7,475,999.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.