Home / 21,887,999.80-32,831,999.70-12,818,073.40

Finding the Fourth Proportional to 21,887,999.80, 32,831,999.70 and 12,818,073.40

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Solution

The fourth proportional to 21,887,999.80, 32,831,999.70 and 12,818,073.40 is: 19,227,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887,999.80 : 32,831,999.70 = 12,818,073.40 : x
  2. Step 2: Convert to fraction form
    21,887,999.80/32,831,999.70 = 12,818,073.40/x
  3. Step 3: Cross multiply
    21,887,999.80x = 32,831,999.70 × 12,818,073.40
  4. Step 4: Simplify right side
    21,887,999.80x = 420,842,982,023,378
  5. Step 5: Solve for x
    x = 420,842,982,023,378/21,887,999.80
  6. Step 6: Final answer
    x = 19,227,110.10

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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.