Home / 13,785,788.40-20,679,460.20-4,201,479.60

Finding the Fourth Proportional to 13,785,788.40, 20,679,460.20 and 4,201,479.60

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Solution

The fourth proportional to 13,785,788.40, 20,679,460.20 and 4,201,479.60 is: 6,302,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785,788.40 : 20,679,460.20 = 4,201,479.60 : x
  2. Step 2: Convert to fraction form
    13,785,788.40/20,679,460.20 = 4,201,479.60/x
  3. Step 3: Cross multiply
    13,785,788.40x = 20,679,460.20 × 4,201,479.60
  4. Step 4: Simplify right side
    13,785,788.40x = 86,884,330,169,311.91
  5. Step 5: Solve for x
    x = 86,884,330,169,311.91/13,785,788.40
  6. Step 6: Final answer
    x = 6,302,456.39

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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.