Home / 5,319,805.24-7,978,254.09-1,907,458.30

Finding the Fourth Proportional to 5,319,805.24, 7,978,254.09 and 1,907,458.30

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Solution

The fourth proportional to 5,319,805.24, 7,978,254.09 and 1,907,458.30 is: 2,860,666.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319,805.24 : 7,978,254.09 = 1,907,458.30 : x
  2. Step 2: Convert to fraction form
    5,319,805.24/7,978,254.09 = 1,907,458.30/x
  3. Step 3: Cross multiply
    5,319,805.24x = 7,978,254.09 × 1,907,458.30
  4. Step 4: Simplify right side
    5,319,805.24x = 15,218,186,983,479.45
  5. Step 5: Solve for x
    x = 15,218,186,983,479.45/5,319,805.24
  6. Step 6: Final answer
    x = 2,860,666.19

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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.