Home / 20,693,217,974.79-28,556,653,315.84-11,177,773,928.00

Finding the Fourth Proportional to 20,693,217,974.79, 28,556,653,315.84 and 11,177,773,928.00

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Solution

The fourth proportional to 20,693,217,974.79, 28,556,653,315.84 and 11,177,773,928.00 is: 15,425,334,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,217,974.79 : 28,556,653,315.84 = 11,177,773,928.00 : x
  2. Step 2: Convert to fraction form
    20,693,217,974.79/28,556,653,315.84 = 11,177,773,928.00/x
  3. Step 3: Cross multiply
    20,693,217,974.79x = 28,556,653,315.84 × 11,177,773,928.00
  4. Step 4: Simplify right side
    20,693,217,974.79x = 319,199,814,904,554,848,256
  5. Step 5: Solve for x
    x = 319,199,814,904,554,848,256/20,693,217,974.79
  6. Step 6: Final answer
    x = 15,425,334,778.45

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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.