Home / 28,072,583.15-42,112,891.56-8,643,453.06

Finding the Fourth Proportional to 28,072,583.15, 42,112,891.56 and 8,643,453.06

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Solution

The fourth proportional to 28,072,583.15, 42,112,891.56 and 8,643,453.06 is: 12,966,416.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,583.15 : 42,112,891.56 = 8,643,453.06 : x
  2. Step 2: Convert to fraction form
    28,072,583.15/42,112,891.56 = 8,643,453.06/x
  3. Step 3: Cross multiply
    28,072,583.15x = 42,112,891.56 × 8,643,453.06
  4. Step 4: Simplify right side
    28,072,583.15x = 364,000,801,419,730.19
  5. Step 5: Solve for x
    x = 364,000,801,419,730.19/28,072,583.15
  6. Step 6: Final answer
    x = 12,966,416.36

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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.