Home / 15,287,008.20-21,093,662.70-8,759,381.82

Finding the Fourth Proportional to 15,287,008.20, 21,093,662.70 and 8,759,381.82

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Solution

The fourth proportional to 15,287,008.20, 21,093,662.70 and 8,759,381.82 is: 12,086,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,008.20 : 21,093,662.70 = 8,759,381.82 : x
  2. Step 2: Convert to fraction form
    15,287,008.20/21,093,662.70 = 8,759,381.82/x
  3. Step 3: Cross multiply
    15,287,008.20x = 21,093,662.70 × 8,759,381.82
  4. Step 4: Simplify right side
    15,287,008.20x = 184,767,445,571,592.12
  5. Step 5: Solve for x
    x = 184,767,445,571,592.12/15,287,008.20
  6. Step 6: Final answer
    x = 12,086,566.79

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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.