Home / 913,899,370.72-1,370,782,005.72-291,947,608.55

Finding the Fourth Proportional to 913,899,370.72, 1,370,782,005.72 and 291,947,608.55

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Solution

The fourth proportional to 913,899,370.72, 1,370,782,005.72 and 291,947,608.55 is: 437,899,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,899,370.72 : 1,370,782,005.72 = 291,947,608.55 : x
  2. Step 2: Convert to fraction form
    913,899,370.72/1,370,782,005.72 = 291,947,608.55/x
  3. Step 3: Cross multiply
    913,899,370.72x = 1,370,782,005.72 × 291,947,608.55
  4. Step 4: Simplify right side
    913,899,370.72x = 400,196,528,413,326,464
  5. Step 5: Solve for x
    x = 400,196,528,413,326,464/913,899,370.72
  6. Step 6: Final answer
    x = 437,899,993.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.