Home / 279,936,701.90-419,905,052.85-278,236,090.70

Finding the Fourth Proportional to 279,936,701.90, 419,905,052.85 and 278,236,090.70

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Solution

The fourth proportional to 279,936,701.90, 419,905,052.85 and 278,236,090.70 is: 417,354,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,701.90 : 419,905,052.85 = 278,236,090.70 : x
  2. Step 2: Convert to fraction form
    279,936,701.90/419,905,052.85 = 278,236,090.70/x
  3. Step 3: Cross multiply
    279,936,701.90x = 419,905,052.85 × 278,236,090.70
  4. Step 4: Simplify right side
    279,936,701.90x = 116,832,740,370,160,896
  5. Step 5: Solve for x
    x = 116,832,740,370,160,896/279,936,701.90
  6. Step 6: Final answer
    x = 417,354,136.05

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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.