Home / 28,082,878.80-42,124,318.20-15,947,653.20

Finding the Fourth Proportional to 28,082,878.80, 42,124,318.20 and 15,947,653.20

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Solution

The fourth proportional to 28,082,878.80, 42,124,318.20 and 15,947,653.20 is: 23,921,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,878.80 : 42,124,318.20 = 15,947,653.20 : x
  2. Step 2: Convert to fraction form
    28,082,878.80/42,124,318.20 = 15,947,653.20/x
  3. Step 3: Cross multiply
    28,082,878.80x = 42,124,318.20 × 15,947,653.20
  4. Step 4: Simplify right side
    28,082,878.80x = 671,784,017,940,048.25
  5. Step 5: Solve for x
    x = 671,784,017,940,048.25/28,082,878.80
  6. Step 6: Final answer
    x = 23,921,479.80

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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.