Home / 20,409,011,342.06-28,164,435,418.05-11,021,637,518.06

Finding the Fourth Proportional to 20,409,011,342.06, 28,164,435,418.05 and 11,021,637,518.06

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Solution

The fourth proportional to 20,409,011,342.06, 28,164,435,418.05 and 11,021,637,518.06 is: 15,209,859,648.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,011,342.06 : 28,164,435,418.05 = 11,021,637,518.06 : x
  2. Step 2: Convert to fraction form
    20,409,011,342.06/28,164,435,418.05 = 11,021,637,518.06/x
  3. Step 3: Cross multiply
    20,409,011,342.06x = 28,164,435,418.05 × 11,021,637,518.06
  4. Step 4: Simplify right side
    20,409,011,342.06x = 310,418,198,078,557,716,480
  5. Step 5: Solve for x
    x = 310,418,198,078,557,716,480/20,409,011,342.06
  6. Step 6: Final answer
    x = 15,209,859,648.56

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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.