Home / 57,091,151.30-78,785,866.74-30,985,669.48

Finding the Fourth Proportional to 57,091,151.30, 78,785,866.74 and 30,985,669.48

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Solution

The fourth proportional to 57,091,151.30, 78,785,866.74 and 30,985,669.48 is: 42,760,266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,151.30 : 78,785,866.74 = 30,985,669.48 : x
  2. Step 2: Convert to fraction form
    57,091,151.30/78,785,866.74 = 30,985,669.48/x
  3. Step 3: Cross multiply
    57,091,151.30x = 78,785,866.74 × 30,985,669.48
  4. Step 4: Simplify right side
    57,091,151.30x = 2,441,232,826,500,965
  5. Step 5: Solve for x
    x = 2,441,232,826,500,965/57,091,151.30
  6. Step 6: Final answer
    x = 42,760,266.19

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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.