Home / 278,746,014.48-418,029,507.80-91,957,969.43

Finding the Fourth Proportional to 278,746,014.48, 418,029,507.80 and 91,957,969.43

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Solution

The fourth proportional to 278,746,014.48, 418,029,507.80 and 91,957,969.43 is: 137,907,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,746,014.48 : 418,029,507.80 = 91,957,969.43 : x
  2. Step 2: Convert to fraction form
    278,746,014.48/418,029,507.80 = 91,957,969.43/x
  3. Step 3: Cross multiply
    278,746,014.48x = 418,029,507.80 × 91,957,969.43
  4. Step 4: Simplify right side
    278,746,014.48x = 38,441,144,699,110,352
  5. Step 5: Solve for x
    x = 38,441,144,699,110,352/278,746,014.48
  6. Step 6: Final answer
    x = 137,907,423.61

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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.