Home / 19,315,632,203.60-28,973,448,305.40-15,825,978,021.20

Finding the Fourth Proportional to 19,315,632,203.60, 28,973,448,305.40 and 15,825,978,021.20

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Solution

The fourth proportional to 19,315,632,203.60, 28,973,448,305.40 and 15,825,978,021.20 is: 23,738,967,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,632,203.60 : 28,973,448,305.40 = 15,825,978,021.20 : x
  2. Step 2: Convert to fraction form
    19,315,632,203.60/28,973,448,305.40 = 15,825,978,021.20/x
  3. Step 3: Cross multiply
    19,315,632,203.60x = 28,973,448,305.40 × 15,825,978,021.20
  4. Step 4: Simplify right side
    19,315,632,203.60x = 458,533,156,079,634,808,832
  5. Step 5: Solve for x
    x = 458,533,156,079,634,808,832/19,315,632,203.60
  6. Step 6: Final answer
    x = 23,738,967,031.80

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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.