Home / 12,071,144.80-18,106,717.20-3,985,368.40

Finding the Fourth Proportional to 12,071,144.80, 18,106,717.20 and 3,985,368.40

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Solution

The fourth proportional to 12,071,144.80, 18,106,717.20 and 3,985,368.40 is: 5,978,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071,144.80 : 18,106,717.20 = 3,985,368.40 : x
  2. Step 2: Convert to fraction form
    12,071,144.80/18,106,717.20 = 3,985,368.40/x
  3. Step 3: Cross multiply
    12,071,144.80x = 18,106,717.20 × 3,985,368.40
  4. Step 4: Simplify right side
    12,071,144.80x = 72,161,938,556,616.47
  5. Step 5: Solve for x
    x = 72,161,938,556,616.47/12,071,144.80
  6. Step 6: Final answer
    x = 5,978,052.60

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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.