Home / 21,275,231,808.40-31,912,847,712.60-10,255,271,232.40

Finding the Fourth Proportional to 21,275,231,808.40, 31,912,847,712.60 and 10,255,271,232.40

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Solution

The fourth proportional to 21,275,231,808.40, 31,912,847,712.60 and 10,255,271,232.40 is: 15,382,906,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,231,808.40 : 31,912,847,712.60 = 10,255,271,232.40 : x
  2. Step 2: Convert to fraction form
    21,275,231,808.40/31,912,847,712.60 = 10,255,271,232.40/x
  3. Step 3: Cross multiply
    21,275,231,808.40x = 31,912,847,712.60 × 10,255,271,232.40
  4. Step 4: Simplify right side
    21,275,231,808.40x = 327,274,909,090,988,883,968
  5. Step 5: Solve for x
    x = 327,274,909,090,988,883,968/21,275,231,808.40
  6. Step 6: Final answer
    x = 15,382,906,848.60

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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.