Home / 20,489,145,516.16-28,275,341,816.64-12,031,156,309.12

Finding the Fourth Proportional to 20,489,145,516.16, 28,275,341,816.64 and 12,031,156,309.12

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Solution

The fourth proportional to 20,489,145,516.16, 28,275,341,816.64 and 12,031,156,309.12 is: 16,603,184,199.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489,145,516.16 : 28,275,341,816.64 = 12,031,156,309.12 : x
  2. Step 2: Convert to fraction form
    20,489,145,516.16/28,275,341,816.64 = 12,031,156,309.12/x
  3. Step 3: Cross multiply
    20,489,145,516.16x = 28,275,341,816.64 × 12,031,156,309.12
  4. Step 4: Simplify right side
    20,489,145,516.16x = 340,185,057,089,792,901,120
  5. Step 5: Solve for x
    x = 340,185,057,089,792,901,120/20,489,145,516.16
  6. Step 6: Final answer
    x = 16,603,184,199.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.