Home / 28,994,557,148,642-40,064,828,404,259-20,646,550,778,279

Finding the Fourth Proportional to 28,994,557,148,642, 40,064,828,404,259 and 20,646,550,778,279

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Solution

The fourth proportional to 28,994,557,148,642, 40,064,828,404,259 and 20,646,550,778,279 is: 28,529,510,205,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,994,557,148,642 : 40,064,828,404,259 = 20,646,550,778,279 : x
  2. Step 2: Convert to fraction form
    28,994,557,148,642/40,064,828,404,259 = 20,646,550,778,279/x
  3. Step 3: Cross multiply
    28,994,557,148,642x = 40,064,828,404,259 × 20,646,550,778,279
  4. Step 4: Simplify right side
    28,994,557,148,642x = 827,200,514,071,568,229,242,765,312
  5. Step 5: Solve for x
    x = 827,200,514,071,568,229,242,765,312/28,994,557,148,642
  6. Step 6: Final answer
    x = 28,529,510,205,342.50

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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.