Home / 28,998,804.78-40,019,377.83-15,947,056.65

Finding the Fourth Proportional to 28,998,804.78, 40,019,377.83 and 15,947,056.65

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Solution

The fourth proportional to 28,998,804.78, 40,019,377.83 and 15,947,056.65 is: 22,007,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998,804.78 : 40,019,377.83 = 15,947,056.65 : x
  2. Step 2: Convert to fraction form
    28,998,804.78/40,019,377.83 = 15,947,056.65/x
  3. Step 3: Cross multiply
    28,998,804.78x = 40,019,377.83 × 15,947,056.65
  4. Step 4: Simplify right side
    28,998,804.78x = 638,191,285,352,764
  5. Step 5: Solve for x
    x = 638,191,285,352,764/28,998,804.78
  6. Step 6: Final answer
    x = 22,007,503.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.