Home / 21,275,135,999.40-31,912,703,999.10-9,665,630,207.40

Finding the Fourth Proportional to 21,275,135,999.40, 31,912,703,999.10 and 9,665,630,207.40

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Solution

The fourth proportional to 21,275,135,999.40, 31,912,703,999.10 and 9,665,630,207.40 is: 14,498,445,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,135,999.40 : 31,912,703,999.10 = 9,665,630,207.40 : x
  2. Step 2: Convert to fraction form
    21,275,135,999.40/31,912,703,999.10 = 9,665,630,207.40/x
  3. Step 3: Cross multiply
    21,275,135,999.40x = 31,912,703,999.10 × 9,665,630,207.40
  4. Step 4: Simplify right side
    21,275,135,999.40x = 308,456,395,773,515,726,848
  5. Step 5: Solve for x
    x = 308,456,395,773,515,726,848/21,275,135,999.40
  6. Step 6: Final answer
    x = 14,498,445,311.10

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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.