Home / 21,064,840.40-31,597,260.60-19,945,096.40

Finding the Fourth Proportional to 21,064,840.40, 31,597,260.60 and 19,945,096.40

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Solution

The fourth proportional to 21,064,840.40, 31,597,260.60 and 19,945,096.40 is: 29,917,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064,840.40 : 31,597,260.60 = 19,945,096.40 : x
  2. Step 2: Convert to fraction form
    21,064,840.40/31,597,260.60 = 19,945,096.40/x
  3. Step 3: Cross multiply
    21,064,840.40x = 31,597,260.60 × 19,945,096.40
  4. Step 4: Simplify right side
    21,064,840.40x = 630,210,408,642,921.88
  5. Step 5: Solve for x
    x = 630,210,408,642,921.88/21,064,840.40
  6. Step 6: Final answer
    x = 29,917,644.60

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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.