Home / 21,438,486,549.51-29,585,927,692.56-11,923,726,317.81

Finding the Fourth Proportional to 21,438,486,549.51, 29,585,927,692.56 and 11,923,726,317.81

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Solution

The fourth proportional to 21,438,486,549.51, 29,585,927,692.56 and 11,923,726,317.81 is: 16,455,196,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,486,549.51 : 29,585,927,692.56 = 11,923,726,317.81 : x
  2. Step 2: Convert to fraction form
    21,438,486,549.51/29,585,927,692.56 = 11,923,726,317.81/x
  3. Step 3: Cross multiply
    21,438,486,549.51x = 29,585,927,692.56 × 11,923,726,317.81
  4. Step 4: Simplify right side
    21,438,486,549.51x = 352,774,504,664,601,329,664
  5. Step 5: Solve for x
    x = 352,774,504,664,601,329,664/21,438,486,549.51
  6. Step 6: Final answer
    x = 16,455,196,305.48

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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.