Home / 39,905,157.28-55,069,093.12-21,570,443.04

Finding the Fourth Proportional to 39,905,157.28, 55,069,093.12 and 21,570,443.04

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Solution

The fourth proportional to 39,905,157.28, 55,069,093.12 and 21,570,443.04 is: 29,767,198.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905,157.28 : 55,069,093.12 = 21,570,443.04 : x
  2. Step 2: Convert to fraction form
    39,905,157.28/55,069,093.12 = 21,570,443.04/x
  3. Step 3: Cross multiply
    39,905,157.28x = 55,069,093.12 × 21,570,443.04
  4. Step 4: Simplify right side
    39,905,157.28x = 1,187,864,736,409,415.75
  5. Step 5: Solve for x
    x = 1,187,864,736,409,415.75/39,905,157.28
  6. Step 6: Final answer
    x = 29,767,198.46

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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.