Home / 21,165,599,109.76-29,208,294,978.08-11,649,947,413.12

Finding the Fourth Proportional to 21,165,599,109.76, 29,208,294,978.08 and 11,649,947,413.12

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Solution

The fourth proportional to 21,165,599,109.76, 29,208,294,978.08 and 11,649,947,413.12 is: 16,076,799,846.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165,599,109.76 : 29,208,294,978.08 = 11,649,947,413.12 : x
  2. Step 2: Convert to fraction form
    21,165,599,109.76/29,208,294,978.08 = 11,649,947,413.12/x
  3. Step 3: Cross multiply
    21,165,599,109.76x = 29,208,294,978.08 × 11,649,947,413.12
  4. Step 4: Simplify right side
    21,165,599,109.76x = 340,275,100,521,529,016,320
  5. Step 5: Solve for x
    x = 340,275,100,521,529,016,320/21,165,599,109.76
  6. Step 6: Final answer
    x = 16,076,799,846.63

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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.