Home / 278,731,293.32-418,097,604.72-84,644,168.24

Finding the Fourth Proportional to 278,731,293.32, 418,097,604.72 and 84,644,168.24

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Solution

The fourth proportional to 278,731,293.32, 418,097,604.72 and 84,644,168.24 is: 126,966,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,731,293.32 : 418,097,604.72 = 84,644,168.24 : x
  2. Step 2: Convert to fraction form
    278,731,293.32/418,097,604.72 = 84,644,168.24/x
  3. Step 3: Cross multiply
    278,731,293.32x = 418,097,604.72 × 84,644,168.24
  4. Step 4: Simplify right side
    278,731,293.32x = 35,389,523,994,660,700
  5. Step 5: Solve for x
    x = 35,389,523,994,660,700/278,731,293.32
  6. Step 6: Final answer
    x = 126,966,454.23

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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.