Home / 6,985,449.12-10,478,174.16-1,936,759.76

Finding the Fourth Proportional to 6,985,449.12, 10,478,174.16 and 1,936,759.76

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Solution

The fourth proportional to 6,985,449.12, 10,478,174.16 and 1,936,759.76 is: 2,905,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,449.12 : 10,478,174.16 = 1,936,759.76 : x
  2. Step 2: Convert to fraction form
    6,985,449.12/10,478,174.16 = 1,936,759.76/x
  3. Step 3: Cross multiply
    6,985,449.12x = 10,478,174.16 × 1,936,759.76
  4. Step 4: Simplify right side
    6,985,449.12x = 20,293,706,071,359.80
  5. Step 5: Solve for x
    x = 20,293,706,071,359.80/6,985,449.12
  6. Step 6: Final answer
    x = 2,905,139.77

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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.