Home / 20,156,414,727.80-30,239,157,054.90-11,871,036,961.40

Finding the Fourth Proportional to 20,156,414,727.80, 30,239,157,054.90 and 11,871,036,961.40

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Solution

The fourth proportional to 20,156,414,727.80, 30,239,157,054.90 and 11,871,036,961.40 is: 17,809,226,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,414,727.80 : 30,239,157,054.90 = 11,871,036,961.40 : x
  2. Step 2: Convert to fraction form
    20,156,414,727.80/30,239,157,054.90 = 11,871,036,961.40/x
  3. Step 3: Cross multiply
    20,156,414,727.80x = 30,239,157,054.90 × 11,871,036,961.40
  4. Step 4: Simplify right side
    20,156,414,727.80x = 358,970,151,080,297,496,576
  5. Step 5: Solve for x
    x = 358,970,151,080,297,496,576/20,156,414,727.80
  6. Step 6: Final answer
    x = 17,809,226,289.89

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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.