Home / 1,185,674,815.53-1,635,694,702.57-715,625,879.85

Finding the Fourth Proportional to 1,185,674,815.53, 1,635,694,702.57 and 715,625,879.85

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Solution

The fourth proportional to 1,185,674,815.53, 1,635,694,702.57 and 715,625,879.85 is: 987,239,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,674,815.53 : 1,635,694,702.57 = 715,625,879.85 : x
  2. Step 2: Convert to fraction form
    1,185,674,815.53/1,635,694,702.57 = 715,625,879.85/x
  3. Step 3: Cross multiply
    1,185,674,815.53x = 1,635,694,702.57 × 715,625,879.85
  4. Step 4: Simplify right side
    1,185,674,815.53x = 1,170,545,460,692,640,256
  5. Step 5: Solve for x
    x = 1,170,545,460,692,640,256/1,185,674,815.53
  6. Step 6: Final answer
    x = 987,239,878.39

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Double scale
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1.5x scale

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.