Home / 936,774,930.72-1,292,325,469.20-565,378,240.80

Finding the Fourth Proportional to 936,774,930.72, 1,292,325,469.20 and 565,378,240.80

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Solution

The fourth proportional to 936,774,930.72, 1,292,325,469.20 and 565,378,240.80 is: 779,966,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,774,930.72 : 1,292,325,469.20 = 565,378,240.80 : x
  2. Step 2: Convert to fraction form
    936,774,930.72/1,292,325,469.20 = 565,378,240.80/x
  3. Step 3: Cross multiply
    936,774,930.72x = 1,292,325,469.20 × 565,378,240.80
  4. Step 4: Simplify right side
    936,774,930.72x = 730,652,700,317,330,560
  5. Step 5: Solve for x
    x = 730,652,700,317,330,560/936,774,930.72
  6. Step 6: Final answer
    x = 779,966,111.77

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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.