Home / 279,936,921.20-419,905,381.80-222,116,140.40

Finding the Fourth Proportional to 279,936,921.20, 419,905,381.80 and 222,116,140.40

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Solution

The fourth proportional to 279,936,921.20, 419,905,381.80 and 222,116,140.40 is: 333,174,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,921.20 : 419,905,381.80 = 222,116,140.40 : x
  2. Step 2: Convert to fraction form
    279,936,921.20/419,905,381.80 = 222,116,140.40/x
  3. Step 3: Cross multiply
    279,936,921.20x = 419,905,381.80 × 222,116,140.40
  4. Step 4: Simplify right side
    279,936,921.20x = 93,267,762,738,604,416
  5. Step 5: Solve for x
    x = 93,267,762,738,604,416/279,936,921.20
  6. Step 6: Final answer
    x = 333,174,210.60

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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.