Home / 31,912,720,401.40-47,869,080,602.10-21,260,091,844.60

Finding the Fourth Proportional to 31,912,720,401.40, 47,869,080,602.10 and 21,260,091,844.60

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Solution

The fourth proportional to 31,912,720,401.40, 47,869,080,602.10 and 21,260,091,844.60 is: 31,890,137,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,912,720,401.40 : 47,869,080,602.10 = 21,260,091,844.60 : x
  2. Step 2: Convert to fraction form
    31,912,720,401.40/47,869,080,602.10 = 21,260,091,844.60/x
  3. Step 3: Cross multiply
    31,912,720,401.40x = 47,869,080,602.10 × 21,260,091,844.60
  4. Step 4: Simplify right side
    31,912,720,401.40x = 1,017,701,050,117,206,179,840
  5. Step 5: Solve for x
    x = 1,017,701,050,117,206,179,840/31,912,720,401.40
  6. Step 6: Final answer
    x = 31,890,137,766.90

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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.