Home / 1,216,084,187,641.70-1,678,085,255,985.80-721,603,526,117.04

Finding the Fourth Proportional to 1,216,084,187,641.70, 1,678,085,255,985.80 and 721,603,526,117.04

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Solution

The fourth proportional to 1,216,084,187,641.70, 1,678,085,255,985.80 and 721,603,526,117.04 is: 995,747,046,257.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,084,187,641.70 : 1,678,085,255,985.80 = 721,603,526,117.04 : x
  2. Step 2: Convert to fraction form
    1,216,084,187,641.70/1,678,085,255,985.80 = 721,603,526,117.04/x
  3. Step 3: Cross multiply
    1,216,084,187,641.70x = 1,678,085,255,985.80 × 721,603,526,117.04
  4. Step 4: Simplify right side
    1,216,084,187,641.70x = 1,210,912,237,844,369,091,067,904
  5. Step 5: Solve for x
    x = 1,210,912,237,844,369,091,067,904/1,216,084,187,641.70
  6. Step 6: Final answer
    x = 995,747,046,257.25

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Double scale
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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.