Home / 12,477,138.80-18,713,083.80-5,288,907.20

Finding the Fourth Proportional to 12,477,138.80, 18,713,083.80 and 5,288,907.20

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Solution

The fourth proportional to 12,477,138.80, 18,713,083.80 and 5,288,907.20 is: 7,932,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,138.80 : 18,713,083.80 = 5,288,907.20 : x
  2. Step 2: Convert to fraction form
    12,477,138.80/18,713,083.80 = 5,288,907.20/x
  3. Step 3: Cross multiply
    12,477,138.80x = 18,713,083.80 × 5,288,907.20
  4. Step 4: Simplify right side
    12,477,138.80x = 98,971,763,644,023.38
  5. Step 5: Solve for x
    x = 98,971,763,644,023.38/12,477,138.80
  6. Step 6: Final answer
    x = 7,932,248.35

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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.