Home / 20,143,829.70-30,215,744.55-6,678,908.10

Finding the Fourth Proportional to 20,143,829.70, 30,215,744.55 and 6,678,908.10

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Solution

The fourth proportional to 20,143,829.70, 30,215,744.55 and 6,678,908.10 is: 10,018,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,829.70 : 30,215,744.55 = 6,678,908.10 : x
  2. Step 2: Convert to fraction form
    20,143,829.70/30,215,744.55 = 6,678,908.10/x
  3. Step 3: Cross multiply
    20,143,829.70x = 30,215,744.55 × 6,678,908.10
  4. Step 4: Simplify right side
    20,143,829.70x = 201,808,181,022,525.84
  5. Step 5: Solve for x
    x = 201,808,181,022,525.84/20,143,829.70
  6. Step 6: Final answer
    x = 10,018,362.15

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1.5x scale

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.