Home / 12,891,051.20-19,314,458.40-6,144,939.20

Finding the Fourth Proportional to 12,891,051.20, 19,314,458.40 and 6,144,939.20

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Solution

The fourth proportional to 12,891,051.20, 19,314,458.40 and 6,144,939.20 is: 9,206,865.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891,051.20 : 19,314,458.40 = 6,144,939.20 : x
  2. Step 2: Convert to fraction form
    12,891,051.20/19,314,458.40 = 6,144,939.20/x
  3. Step 3: Cross multiply
    12,891,051.20x = 19,314,458.40 × 6,144,939.20
  4. Step 4: Simplify right side
    12,891,051.20x = 118,686,172,548,929.28
  5. Step 5: Solve for x
    x = 118,686,172,548,929.28/12,891,051.20
  6. Step 6: Final answer
    x = 9,206,865.34

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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.