Home / 21,257,015,999.40-31,885,523,999.10-21,257,015,999.40

Finding the Fourth Proportional to 21,257,015,999.40, 31,885,523,999.10 and 21,257,015,999.40

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Solution

The fourth proportional to 21,257,015,999.40, 31,885,523,999.10 and 21,257,015,999.40 is: 31,885,523,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,015,999.40 : 31,885,523,999.10 = 21,257,015,999.40 : x
  2. Step 2: Convert to fraction form
    21,257,015,999.40/31,885,523,999.10 = 21,257,015,999.40/x
  3. Step 3: Cross multiply
    21,257,015,999.40x = 31,885,523,999.10 × 21,257,015,999.40
  4. Step 4: Simplify right side
    21,257,015,999.40x = 677,791,093,798,121,373,696
  5. Step 5: Solve for x
    x = 677,791,093,798,121,373,696/21,257,015,999.40
  6. Step 6: Final answer
    x = 31,885,523,999.10

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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.