Home / 28,552,368,786.86-39,403,213,874.71-15,692,464,571.90

Finding the Fourth Proportional to 28,552,368,786.86, 39,403,213,874.71 and 15,692,464,571.90

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Solution

The fourth proportional to 28,552,368,786.86, 39,403,213,874.71 and 15,692,464,571.90 is: 21,656,120,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552,368,786.86 : 39,403,213,874.71 = 15,692,464,571.90 : x
  2. Step 2: Convert to fraction form
    28,552,368,786.86/39,403,213,874.71 = 15,692,464,571.90/x
  3. Step 3: Cross multiply
    28,552,368,786.86x = 39,403,213,874.71 × 15,692,464,571.90
  4. Step 4: Simplify right side
    28,552,368,786.86x = 618,333,537,747,877,101,568
  5. Step 5: Solve for x
    x = 618,333,537,747,877,101,568/28,552,368,786.86
  6. Step 6: Final answer
    x = 21,656,120,455.84

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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.