Home / 278,746,038.92-418,029,544.37-91,957,993.88

Finding the Fourth Proportional to 278,746,038.92, 418,029,544.37 and 91,957,993.88

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Solution

The fourth proportional to 278,746,038.92, 418,029,544.37 and 91,957,993.88 is: 137,907,460.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,746,038.92 : 418,029,544.37 = 91,957,993.88 : x
  2. Step 2: Convert to fraction form
    278,746,038.92/418,029,544.37 = 91,957,993.88/x
  3. Step 3: Cross multiply
    278,746,038.92x = 418,029,544.37 × 91,957,993.88
  4. Step 4: Simplify right side
    278,746,038.92x = 38,441,158,280,975,392
  5. Step 5: Solve for x
    x = 38,441,158,280,975,392/278,746,038.92
  6. Step 6: Final answer
    x = 137,907,460.24

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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.