Home / 57,091,020.13-78,785,683.80-30,985,537.96

Finding the Fourth Proportional to 57,091,020.13, 78,785,683.80 and 30,985,537.96

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Solution

The fourth proportional to 57,091,020.13, 78,785,683.80 and 30,985,537.96 is: 42,760,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,020.13 : 78,785,683.80 = 30,985,537.96 : x
  2. Step 2: Convert to fraction form
    57,091,020.13/78,785,683.80 = 30,985,537.96/x
  3. Step 3: Cross multiply
    57,091,020.13x = 78,785,683.80 × 30,985,537.96
  4. Step 4: Simplify right side
    57,091,020.13x = 2,441,216,796,089,457
  5. Step 5: Solve for x
    x = 2,441,216,796,089,457/57,091,020.13
  6. Step 6: Final answer
    x = 42,760,083.64

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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.