Home / 913,899,369.72-1,370,782,004.23-291,947,607.55

Finding the Fourth Proportional to 913,899,369.72, 1,370,782,004.23 and 291,947,607.55

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Solution

The fourth proportional to 913,899,369.72, 1,370,782,004.23 and 291,947,607.55 is: 437,899,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,899,369.72 : 1,370,782,004.23 = 291,947,607.55 : x
  2. Step 2: Convert to fraction form
    913,899,369.72/1,370,782,004.23 = 291,947,607.55/x
  3. Step 3: Cross multiply
    913,899,369.72x = 1,370,782,004.23 × 291,947,607.55
  4. Step 4: Simplify right side
    913,899,369.72x = 400,196,526,599,228,800
  5. Step 5: Solve for x
    x = 400,196,526,599,228,800/913,899,369.72
  6. Step 6: Final answer
    x = 437,899,991.90

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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.