Home / 28,796,750.10-43,195,125.15-21,143,999.70

Finding the Fourth Proportional to 28,796,750.10, 43,195,125.15 and 21,143,999.70

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Solution

The fourth proportional to 28,796,750.10, 43,195,125.15 and 21,143,999.70 is: 31,715,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796,750.10 : 43,195,125.15 = 21,143,999.70 : x
  2. Step 2: Convert to fraction form
    28,796,750.10/43,195,125.15 = 21,143,999.70/x
  3. Step 3: Cross multiply
    28,796,750.10x = 43,195,125.15 × 21,143,999.70
  4. Step 4: Simplify right side
    28,796,750.10x = 913,317,713,213,062.38
  5. Step 5: Solve for x
    x = 913,317,713,213,062.38/28,796,750.10
  6. Step 6: Final answer
    x = 31,715,999.55

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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.