Home / 3,939,885.80-5,909,828.70-1,415,623.40

Finding the Fourth Proportional to 3,939,885.80, 5,909,828.70 and 1,415,623.40

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Solution

The fourth proportional to 3,939,885.80, 5,909,828.70 and 1,415,623.40 is: 2,123,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,885.80 : 5,909,828.70 = 1,415,623.40 : x
  2. Step 2: Convert to fraction form
    3,939,885.80/5,909,828.70 = 1,415,623.40/x
  3. Step 3: Cross multiply
    3,939,885.80x = 5,909,828.70 × 1,415,623.40
  4. Step 4: Simplify right side
    3,939,885.80x = 8,366,091,797,711.58
  5. Step 5: Solve for x
    x = 8,366,091,797,711.58/3,939,885.80
  6. Step 6: Final answer
    x = 2,123,435.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.