Home / 279,936,700.90-419,905,051.35-278,236,089.70

Finding the Fourth Proportional to 279,936,700.90, 419,905,051.35 and 278,236,089.70

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Solution

The fourth proportional to 279,936,700.90, 419,905,051.35 and 278,236,089.70 is: 417,354,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,700.90 : 419,905,051.35 = 278,236,089.70 : x
  2. Step 2: Convert to fraction form
    279,936,700.90/419,905,051.35 = 278,236,089.70/x
  3. Step 3: Cross multiply
    279,936,700.90x = 419,905,051.35 × 278,236,089.70
  4. Step 4: Simplify right side
    279,936,700.90x = 116,832,739,532,901,712
  5. Step 5: Solve for x
    x = 116,832,739,532,901,712/279,936,700.90
  6. Step 6: Final answer
    x = 417,354,134.55

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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.