Home / 20,785,256,877.20-31,177,885,315.80-20,372,008,355.60

Finding the Fourth Proportional to 20,785,256,877.20, 31,177,885,315.80 and 20,372,008,355.60

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Solution

The fourth proportional to 20,785,256,877.20, 31,177,885,315.80 and 20,372,008,355.60 is: 30,558,012,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,256,877.20 : 31,177,885,315.80 = 20,372,008,355.60 : x
  2. Step 2: Convert to fraction form
    20,785,256,877.20/31,177,885,315.80 = 20,372,008,355.60/x
  3. Step 3: Cross multiply
    20,785,256,877.20x = 31,177,885,315.80 × 20,372,008,355.60
  4. Step 4: Simplify right side
    20,785,256,877.20x = 635,156,140,163,416,064,000
  5. Step 5: Solve for x
    x = 635,156,140,163,416,064,000/20,785,256,877.20
  6. Step 6: Final answer
    x = 30,558,012,533.40

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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.