Home / 21,661,402,987.29-29,888,259,774.77-12,505,773,170.01

Finding the Fourth Proportional to 21,661,402,987.29, 29,888,259,774.77 and 12,505,773,170.01

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Solution

The fourth proportional to 21,661,402,987.29, 29,888,259,774.77 and 12,505,773,170.01 is: 17,255,382,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,661,402,987.29 : 29,888,259,774.77 = 12,505,773,170.01 : x
  2. Step 2: Convert to fraction form
    21,661,402,987.29/29,888,259,774.77 = 12,505,773,170.01/x
  3. Step 3: Cross multiply
    21,661,402,987.29x = 29,888,259,774.77 × 12,505,773,170.01
  4. Step 4: Simplify right side
    21,661,402,987.29x = 373,775,797,189,485,461,504
  5. Step 5: Solve for x
    x = 373,775,797,189,485,461,504/21,661,402,987.29
  6. Step 6: Final answer
    x = 17,255,382,645.75

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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.