Home / 20,785,257,549.20-31,177,886,323.80-20,372,009,027.60

Finding the Fourth Proportional to 20,785,257,549.20, 31,177,886,323.80 and 20,372,009,027.60

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Solution

The fourth proportional to 20,785,257,549.20, 31,177,886,323.80 and 20,372,009,027.60 is: 30,558,013,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,257,549.20 : 31,177,886,323.80 = 20,372,009,027.60 : x
  2. Step 2: Convert to fraction form
    20,785,257,549.20/31,177,886,323.80 = 20,372,009,027.60/x
  3. Step 3: Cross multiply
    20,785,257,549.20x = 31,177,886,323.80 × 20,372,009,027.60
  4. Step 4: Simplify right side
    20,785,257,549.20x = 635,156,181,649,940,152,320
  5. Step 5: Solve for x
    x = 635,156,181,649,940,152,320/20,785,257,549.20
  6. Step 6: Final answer
    x = 30,558,013,541.40

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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.