Home / 57,094,111.45-78,789,675.13-30,988,629.21

Finding the Fourth Proportional to 57,094,111.45, 78,789,675.13 and 30,988,629.21

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Solution

The fourth proportional to 57,094,111.45, 78,789,675.13 and 30,988,629.21 is: 42,764,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,094,111.45 : 78,789,675.13 = 30,988,629.21 : x
  2. Step 2: Convert to fraction form
    57,094,111.45/78,789,675.13 = 30,988,629.21/x
  3. Step 3: Cross multiply
    57,094,111.45x = 78,789,675.13 × 30,988,629.21
  4. Step 4: Simplify right side
    57,094,111.45x = 2,441,584,028,102,457
  5. Step 5: Solve for x
    x = 2,441,584,028,102,457/57,094,111.45
  6. Step 6: Final answer
    x = 42,764,200.48

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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.