Home / 28,992,736.32-40,007,916-15,939,657.60

Finding the Fourth Proportional to 28,992,736.32, 40,007,916 and 15,939,657.60

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Solution

The fourth proportional to 28,992,736.32, 40,007,916 and 15,939,657.60 is: 21,995,594.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992,736.32 : 40,007,916 = 15,939,657.60 : x
  2. Step 2: Convert to fraction form
    28,992,736.32/40,007,916 = 15,939,657.60/x
  3. Step 3: Cross multiply
    28,992,736.32x = 40,007,916 × 15,939,657.60
  4. Step 4: Simplify right side
    28,992,736.32x = 637,712,482,329,561.62
  5. Step 5: Solve for x
    x = 637,712,482,329,561.62/28,992,736.32
  6. Step 6: Final answer
    x = 21,995,594.87

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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.