Home / 6,478,331.20-9,712,831.20-3,639,313.60

Finding the Fourth Proportional to 6,478,331.20, 9,712,831.20 and 3,639,313.60

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Solution

The fourth proportional to 6,478,331.20, 9,712,831.20 and 3,639,313.60 is: 5,456,349.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478,331.20 : 9,712,831.20 = 3,639,313.60 : x
  2. Step 2: Convert to fraction form
    6,478,331.20/9,712,831.20 = 3,639,313.60/x
  3. Step 3: Cross multiply
    6,478,331.20x = 9,712,831.20 × 3,639,313.60
  4. Step 4: Simplify right side
    6,478,331.20x = 35,348,038,680,664.32
  5. Step 5: Solve for x
    x = 35,348,038,680,664.32/6,478,331.20
  6. Step 6: Final answer
    x = 5,456,349.42

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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.