Home / 57,091,157.58-78,785,875.23-30,985,675.75

Finding the Fourth Proportional to 57,091,157.58, 78,785,875.23 and 30,985,675.75

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Solution

The fourth proportional to 57,091,157.58, 78,785,875.23 and 30,985,675.75 is: 42,760,274.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,157.58 : 78,785,875.23 = 30,985,675.75 : x
  2. Step 2: Convert to fraction form
    57,091,157.58/78,785,875.23 = 30,985,675.75/x
  3. Step 3: Cross multiply
    57,091,157.58x = 78,785,875.23 × 30,985,675.75
  4. Step 4: Simplify right side
    57,091,157.58x = 2,441,233,583,539,022.50
  5. Step 5: Solve for x
    x = 2,441,233,583,539,022.50/57,091,157.58
  6. Step 6: Final answer
    x = 42,760,274.74

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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.