Home / 5,106,421.80-7,659,632.70-2,978,908.20

Finding the Fourth Proportional to 5,106,421.80, 7,659,632.70 and 2,978,908.20

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Solution

The fourth proportional to 5,106,421.80, 7,659,632.70 and 2,978,908.20 is: 4,468,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106,421.80 : 7,659,632.70 = 2,978,908.20 : x
  2. Step 2: Convert to fraction form
    5,106,421.80/7,659,632.70 = 2,978,908.20/x
  3. Step 3: Cross multiply
    5,106,421.80x = 7,659,632.70 × 2,978,908.20
  4. Step 4: Simplify right side
    5,106,421.80x = 22,817,342,659,018.14
  5. Step 5: Solve for x
    x = 22,817,342,659,018.14/5,106,421.80
  6. Step 6: Final answer
    x = 4,468,362.30

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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.