Home / 4,920,989.80-7,381,484.70-4,247,831.20

Finding the Fourth Proportional to 4,920,989.80, 7,381,484.70 and 4,247,831.20

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Solution

The fourth proportional to 4,920,989.80, 7,381,484.70 and 4,247,831.20 is: 6,371,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,989.80 : 7,381,484.70 = 4,247,831.20 : x
  2. Step 2: Convert to fraction form
    4,920,989.80/7,381,484.70 = 4,247,831.20/x
  3. Step 3: Cross multiply
    4,920,989.80x = 7,381,484.70 × 4,247,831.20
  4. Step 4: Simplify right side
    4,920,989.80x = 31,355,301,010,982.64
  5. Step 5: Solve for x
    x = 31,355,301,010,982.64/4,920,989.80
  6. Step 6: Final answer
    x = 6,371,746.80

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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.