Home / 21,256,832,311.20-31,885,248,466.80-19,708,898,205.60

Finding the Fourth Proportional to 21,256,832,311.20, 31,885,248,466.80 and 19,708,898,205.60

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Solution

The fourth proportional to 21,256,832,311.20, 31,885,248,466.80 and 19,708,898,205.60 is: 29,563,347,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256,832,311.20 : 31,885,248,466.80 = 19,708,898,205.60 : x
  2. Step 2: Convert to fraction form
    21,256,832,311.20/31,885,248,466.80 = 19,708,898,205.60/x
  3. Step 3: Cross multiply
    21,256,832,311.20x = 31,885,248,466.80 × 19,708,898,205.60
  4. Step 4: Simplify right side
    21,256,832,311.20x = 628,423,116,292,424,597,504
  5. Step 5: Solve for x
    x = 628,423,116,292,424,597,504/21,256,832,311.20
  6. Step 6: Final answer
    x = 29,563,347,308.40

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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.