Home / 38,491,036.38-53,117,627.58-21,087,998.46

Finding the Fourth Proportional to 38,491,036.38, 53,117,627.58 and 21,087,998.46

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Solution

The fourth proportional to 38,491,036.38, 53,117,627.58 and 21,087,998.46 is: 29,101,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491,036.38 : 53,117,627.58 = 21,087,998.46 : x
  2. Step 2: Convert to fraction form
    38,491,036.38/53,117,627.58 = 21,087,998.46/x
  3. Step 3: Cross multiply
    38,491,036.38x = 53,117,627.58 × 21,087,998.46
  4. Step 4: Simplify right side
    38,491,036.38x = 1,120,144,448,605,893.50
  5. Step 5: Solve for x
    x = 1,120,144,448,605,893.50/38,491,036.38
  6. Step 6: Final answer
    x = 29,101,436.44

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Half scale
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Double scale
Find fourth proportional to 38,491,037.38, 53,117,628.96 and 21,087,999.46
Similar ratio
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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.