Home / 40,205,896.08-55,484,094.60-21,871,137.84

Finding the Fourth Proportional to 40,205,896.08, 55,484,094.60 and 21,871,137.84

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Solution

The fourth proportional to 40,205,896.08, 55,484,094.60 and 21,871,137.84 is: 30,182,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,205,896.08 : 55,484,094.60 = 21,871,137.84 : x
  2. Step 2: Convert to fraction form
    40,205,896.08/55,484,094.60 = 21,871,137.84/x
  3. Step 3: Cross multiply
    40,205,896.08x = 55,484,094.60 × 21,871,137.84
  4. Step 4: Simplify right side
    40,205,896.08x = 1,213,500,280,924,199.75
  5. Step 5: Solve for x
    x = 1,213,500,280,924,199.75/40,205,896.08
  6. Step 6: Final answer
    x = 30,182,147.38

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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.