Home / 21,174,541,010.69-29,221,390,594.76-11,529,799,721.33

Finding the Fourth Proportional to 21,174,541,010.69, 29,221,390,594.76 and 11,529,799,721.33

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Solution

The fourth proportional to 21,174,541,010.69, 29,221,390,594.76 and 11,529,799,721.33 is: 15,911,408,939.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174,541,010.69 : 29,221,390,594.76 = 11,529,799,721.33 : x
  2. Step 2: Convert to fraction form
    21,174,541,010.69/29,221,390,594.76 = 11,529,799,721.33/x
  3. Step 3: Cross multiply
    21,174,541,010.69x = 29,221,390,594.76 × 11,529,799,721.33
  4. Step 4: Simplify right side
    21,174,541,010.69x = 336,916,781,136,135,192,576
  5. Step 5: Solve for x
    x = 336,916,781,136,135,192,576/21,174,541,010.69
  6. Step 6: Final answer
    x = 15,911,408,939.92

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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.