Home / 13,420,831.40-20,125,998.30-4,896,780.20

Finding the Fourth Proportional to 13,420,831.40, 20,125,998.30 and 4,896,780.20

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Solution

The fourth proportional to 13,420,831.40, 20,125,998.30 and 4,896,780.20 is: 7,343,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,831.40 : 20,125,998.30 = 4,896,780.20 : x
  2. Step 2: Convert to fraction form
    13,420,831.40/20,125,998.30 = 4,896,780.20/x
  3. Step 3: Cross multiply
    13,420,831.40x = 20,125,998.30 × 4,896,780.20
  4. Step 4: Simplify right side
    13,420,831.40x = 98,552,589,980,673.67
  5. Step 5: Solve for x
    x = 98,552,589,980,673.67/13,420,831.40
  6. Step 6: Final answer
    x = 7,343,255.20

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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.