Home / 20,386,507,998.80-30,579,761,998.20-6,416,412,143.60

Finding the Fourth Proportional to 20,386,507,998.80, 30,579,761,998.20 and 6,416,412,143.60

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Solution

The fourth proportional to 20,386,507,998.80, 30,579,761,998.20 and 6,416,412,143.60 is: 9,624,618,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,507,998.80 : 30,579,761,998.20 = 6,416,412,143.60 : x
  2. Step 2: Convert to fraction form
    20,386,507,998.80/30,579,761,998.20 = 6,416,412,143.60/x
  3. Step 3: Cross multiply
    20,386,507,998.80x = 30,579,761,998.20 × 6,416,412,143.60
  4. Step 4: Simplify right side
    20,386,507,998.80x = 196,212,356,233,648,308,224
  5. Step 5: Solve for x
    x = 196,212,356,233,648,308,224/20,386,507,998.80
  6. Step 6: Final answer
    x = 9,624,618,215.40

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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.