Home / 21,069,820.20-31,551,586.20-16,818,292.20

Finding the Fourth Proportional to 21,069,820.20, 31,551,586.20 and 16,818,292.20

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Solution

The fourth proportional to 21,069,820.20, 31,551,586.20 and 16,818,292.20 is: 25,185,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,820.20 : 31,551,586.20 = 16,818,292.20 : x
  2. Step 2: Convert to fraction form
    21,069,820.20/31,551,586.20 = 16,818,292.20/x
  3. Step 3: Cross multiply
    21,069,820.20x = 31,551,586.20 × 16,818,292.20
  4. Step 4: Simplify right side
    21,069,820.20x = 530,643,796,085,087.62
  5. Step 5: Solve for x
    x = 530,643,796,085,087.62/21,069,820.20
  6. Step 6: Final answer
    x = 25,185,017.77

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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.