Home / 21,099,947.84-31,649,575.90-6,722,820.32

Finding the Fourth Proportional to 21,099,947.84, 31,649,575.90 and 6,722,820.32

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Solution

The fourth proportional to 21,099,947.84, 31,649,575.90 and 6,722,820.32 is: 10,084,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099,947.84 : 31,649,575.90 = 6,722,820.32 : x
  2. Step 2: Convert to fraction form
    21,099,947.84/31,649,575.90 = 6,722,820.32/x
  3. Step 3: Cross multiply
    21,099,947.84x = 31,649,575.90 × 6,722,820.32
  4. Step 4: Simplify right side
    21,099,947.84x = 212,774,411,979,902.28
  5. Step 5: Solve for x
    x = 212,774,411,979,902.28/21,099,947.84
  6. Step 6: Final answer
    x = 10,084,120.28

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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.