Home / 3,885,968.22-5,362,393.40-2,143,657.76

Finding the Fourth Proportional to 3,885,968.22, 5,362,393.40 and 2,143,657.76

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Solution

The fourth proportional to 3,885,968.22, 5,362,393.40 and 2,143,657.76 is: 2,958,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885,968.22 : 5,362,393.40 = 2,143,657.76 : x
  2. Step 2: Convert to fraction form
    3,885,968.22/5,362,393.40 = 2,143,657.76/x
  3. Step 3: Cross multiply
    3,885,968.22x = 5,362,393.40 × 2,143,657.76
  4. Step 4: Simplify right side
    3,885,968.22x = 11,495,136,224,082.78
  5. Step 5: Solve for x
    x = 11,495,136,224,082.78/3,885,968.22
  6. Step 6: Final answer
    x = 2,958,113.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.