Home / 38,479,154.58-53,099,338.05-21,075,576.66

Finding the Fourth Proportional to 38,479,154.58, 53,099,338.05 and 21,075,576.66

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Solution

The fourth proportional to 38,479,154.58, 53,099,338.05 and 21,075,576.66 is: 29,083,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,479,154.58 : 53,099,338.05 = 21,075,576.66 : x
  2. Step 2: Convert to fraction form
    38,479,154.58/53,099,338.05 = 21,075,576.66/x
  3. Step 3: Cross multiply
    38,479,154.58x = 53,099,338.05 × 21,075,576.66
  4. Step 4: Simplify right side
    38,479,154.58x = 1,119,099,169,668,029.88
  5. Step 5: Solve for x
    x = 1,119,099,169,668,029.88/38,479,154.58
  6. Step 6: Final answer
    x = 29,083,257.72

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Double scale
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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.