Home / 13,759,115.40-20,630,897.10-5,239,729.80

Finding the Fourth Proportional to 13,759,115.40, 20,630,897.10 and 5,239,729.80

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Solution

The fourth proportional to 13,759,115.40, 20,630,897.10 and 5,239,729.80 is: 7,856,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759,115.40 : 20,630,897.10 = 5,239,729.80 : x
  2. Step 2: Convert to fraction form
    13,759,115.40/20,630,897.10 = 5,239,729.80/x
  3. Step 3: Cross multiply
    13,759,115.40x = 20,630,897.10 × 5,239,729.80
  4. Step 4: Simplify right side
    13,759,115.40x = 108,100,326,335,603.58
  5. Step 5: Solve for x
    x = 108,100,326,335,603.58/13,759,115.40
  6. Step 6: Final answer
    x = 7,856,633.45

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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.