Home / 12,518,272.80-18,763,412.40-5,328,583.20

Finding the Fourth Proportional to 12,518,272.80, 18,763,412.40 and 5,328,583.20

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Solution

The fourth proportional to 12,518,272.80, 18,763,412.40 and 5,328,583.20 is: 7,986,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518,272.80 : 18,763,412.40 = 5,328,583.20 : x
  2. Step 2: Convert to fraction form
    12,518,272.80/18,763,412.40 = 5,328,583.20/x
  3. Step 3: Cross multiply
    12,518,272.80x = 18,763,412.40 × 5,328,583.20
  4. Step 4: Simplify right side
    12,518,272.80x = 99,982,404,089,311.67
  5. Step 5: Solve for x
    x = 99,982,404,089,311.67/12,518,272.80
  6. Step 6: Final answer
    x = 7,986,916.86

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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.