Home / 28,925,200.64-39,915,438.72-15,872,130.56

Finding the Fourth Proportional to 28,925,200.64, 39,915,438.72 and 15,872,130.56

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Solution

The fourth proportional to 28,925,200.64, 39,915,438.72 and 15,872,130.56 is: 21,902,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925,200.64 : 39,915,438.72 = 15,872,130.56 : x
  2. Step 2: Convert to fraction form
    28,925,200.64/39,915,438.72 = 15,872,130.56/x
  3. Step 3: Cross multiply
    28,925,200.64x = 39,915,438.72 × 15,872,130.56
  4. Step 4: Simplify right side
    28,925,200.64x = 633,543,054,723,519.25
  5. Step 5: Solve for x
    x = 633,543,054,723,519.25/28,925,200.64
  6. Step 6: Final answer
    x = 21,902,805.88

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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.