Home / 8,761,939.20-13,142,908.80-2,778,307.20

Finding the Fourth Proportional to 8,761,939.20, 13,142,908.80 and 2,778,307.20

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Solution

The fourth proportional to 8,761,939.20, 13,142,908.80 and 2,778,307.20 is: 4,167,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761,939.20 : 13,142,908.80 = 2,778,307.20 : x
  2. Step 2: Convert to fraction form
    8,761,939.20/13,142,908.80 = 2,778,307.20/x
  3. Step 3: Cross multiply
    8,761,939.20x = 13,142,908.80 × 2,778,307.20
  4. Step 4: Simplify right side
    8,761,939.20x = 36,515,038,147,983.37
  5. Step 5: Solve for x
    x = 36,515,038,147,983.37/8,761,939.20
  6. Step 6: Final answer
    x = 4,167,460.80

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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.