Home / 20,912,257,115.10-31,368,385,672.65-7,824,353,319.90

Finding the Fourth Proportional to 20,912,257,115.10, 31,368,385,672.65 and 7,824,353,319.90

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Solution

The fourth proportional to 20,912,257,115.10, 31,368,385,672.65 and 7,824,353,319.90 is: 11,736,529,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,257,115.10 : 31,368,385,672.65 = 7,824,353,319.90 : x
  2. Step 2: Convert to fraction form
    20,912,257,115.10/31,368,385,672.65 = 7,824,353,319.90/x
  3. Step 3: Cross multiply
    20,912,257,115.10x = 31,368,385,672.65 × 7,824,353,319.90
  4. Step 4: Simplify right side
    20,912,257,115.10x = 245,437,332,577,702,608,896
  5. Step 5: Solve for x
    x = 245,437,332,577,702,608,896/20,912,257,115.10
  6. Step 6: Final answer
    x = 11,736,529,979.85

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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.