Home / 21,632,876,278.47-29,853,544,548.36-11,987,767,357.89

Finding the Fourth Proportional to 21,632,876,278.47, 29,853,544,548.36 and 11,987,767,357.89

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Solution

The fourth proportional to 21,632,876,278.47, 29,853,544,548.36 and 11,987,767,357.89 is: 16,543,216,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632,876,278.47 : 29,853,544,548.36 = 11,987,767,357.89 : x
  2. Step 2: Convert to fraction form
    21,632,876,278.47/29,853,544,548.36 = 11,987,767,357.89/x
  3. Step 3: Cross multiply
    21,632,876,278.47x = 29,853,544,548.36 × 11,987,767,357.89
  4. Step 4: Simplify right side
    21,632,876,278.47x = 357,877,346,854,144,966,656
  5. Step 5: Solve for x
    x = 357,877,346,854,144,966,656/21,632,876,278.47
  6. Step 6: Final answer
    x = 16,543,216,086.82

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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.