Home / 12,939,351.40-19,421,468.70-6,556,810.60

Finding the Fourth Proportional to 12,939,351.40, 19,421,468.70 and 6,556,810.60

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Solution

The fourth proportional to 12,939,351.40, 19,421,468.70 and 6,556,810.60 is: 9,841,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,351.40 : 19,421,468.70 = 6,556,810.60 : x
  2. Step 2: Convert to fraction form
    12,939,351.40/19,421,468.70 = 6,556,810.60/x
  3. Step 3: Cross multiply
    12,939,351.40x = 19,421,468.70 × 6,556,810.60
  4. Step 4: Simplify right side
    12,939,351.40x = 127,342,891,839,728.20
  5. Step 5: Solve for x
    x = 127,342,891,839,728.20/12,939,351.40
  6. Step 6: Final answer
    x = 9,841,520.48

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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.