Home / 56,770,629.31-78,343,456.38-30,665,147.40

Finding the Fourth Proportional to 56,770,629.31, 78,343,456.38 and 30,665,147.40

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Solution

The fourth proportional to 56,770,629.31, 78,343,456.38 and 30,665,147.40 is: 42,317,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770,629.31 : 78,343,456.38 = 30,665,147.40 : x
  2. Step 2: Convert to fraction form
    56,770,629.31/78,343,456.38 = 30,665,147.40/x
  3. Step 3: Cross multiply
    56,770,629.31x = 78,343,456.38 × 30,665,147.40
  4. Step 4: Simplify right side
    56,770,629.31x = 2,402,413,637,603,176
  5. Step 5: Solve for x
    x = 2,402,413,637,603,176/56,770,629.31
  6. Step 6: Final answer
    x = 42,317,896.89

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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.