Home / 21,099,948.84-31,649,577.40-6,722,821.32

Finding the Fourth Proportional to 21,099,948.84, 31,649,577.40 and 6,722,821.32

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Solution

The fourth proportional to 21,099,948.84, 31,649,577.40 and 6,722,821.32 is: 10,084,121.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099,948.84 : 31,649,577.40 = 6,722,821.32 : x
  2. Step 2: Convert to fraction form
    21,099,948.84/31,649,577.40 = 6,722,821.32/x
  3. Step 3: Cross multiply
    21,099,948.84x = 31,649,577.40 × 6,722,821.32
  4. Step 4: Simplify right side
    21,099,948.84x = 212,774,453,713,710.16
  5. Step 5: Solve for x
    x = 212,774,453,713,710.16/21,099,948.84
  6. Step 6: Final answer
    x = 10,084,121.78

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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.