Home / 39,786,538,904.55-54,905,139,417.54-21,722,054,525.89

Finding the Fourth Proportional to 39,786,538,904.55, 54,905,139,417.54 and 21,722,054,525.89

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Solution

The fourth proportional to 39,786,538,904.55, 54,905,139,417.54 and 21,722,054,525.89 is: 29,976,280,043.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786,538,904.55 : 54,905,139,417.54 = 21,722,054,525.89 : x
  2. Step 2: Convert to fraction form
    39,786,538,904.55/54,905,139,417.54 = 21,722,054,525.89/x
  3. Step 3: Cross multiply
    39,786,538,904.55x = 54,905,139,417.54 × 21,722,054,525.89
  4. Step 4: Simplify right side
    39,786,538,904.55x = 1,192,652,432,179,396,083,712
  5. Step 5: Solve for x
    x = 1,192,652,432,179,396,083,712/39,786,538,904.55
  6. Step 6: Final answer
    x = 29,976,280,043.87

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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.