Home / 20,212,857.80-30,320,598.90-10,646,919.80

Finding the Fourth Proportional to 20,212,857.80, 30,320,598.90 and 10,646,919.80

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Solution

The fourth proportional to 20,212,857.80, 30,320,598.90 and 10,646,919.80 is: 15,971,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,857.80 : 30,320,598.90 = 10,646,919.80 : x
  2. Step 2: Convert to fraction form
    20,212,857.80/30,320,598.90 = 10,646,919.80/x
  3. Step 3: Cross multiply
    20,212,857.80x = 30,320,598.90 × 10,646,919.80
  4. Step 4: Simplify right side
    20,212,857.80x = 322,820,984,776,268.25
  5. Step 5: Solve for x
    x = 322,820,984,776,268.25/20,212,857.80
  6. Step 6: Final answer
    x = 15,971,070.89

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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.