Home / 20,489,145,520.16-28,275,341,822.16-12,031,156,313.12

Finding the Fourth Proportional to 20,489,145,520.16, 28,275,341,822.16 and 12,031,156,313.12

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Solution

The fourth proportional to 20,489,145,520.16, 28,275,341,822.16 and 12,031,156,313.12 is: 16,603,184,204.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489,145,520.16 : 28,275,341,822.16 = 12,031,156,313.12 : x
  2. Step 2: Convert to fraction form
    20,489,145,520.16/28,275,341,822.16 = 12,031,156,313.12/x
  3. Step 3: Cross multiply
    20,489,145,520.16x = 28,275,341,822.16 × 12,031,156,313.12
  4. Step 4: Simplify right side
    20,489,145,520.16x = 340,185,057,269,306,294,272
  5. Step 5: Solve for x
    x = 340,185,057,269,306,294,272/20,489,145,520.16
  6. Step 6: Final answer
    x = 16,603,184,204.76

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1.5x scale

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.