Home / 7,443,979.20-11,165,968.80-7,129,051.20

Finding the Fourth Proportional to 7,443,979.20, 11,165,968.80 and 7,129,051.20

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Solution

The fourth proportional to 7,443,979.20, 11,165,968.80 and 7,129,051.20 is: 10,693,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443,979.20 : 11,165,968.80 = 7,129,051.20 : x
  2. Step 2: Convert to fraction form
    7,443,979.20/11,165,968.80 = 7,129,051.20/x
  3. Step 3: Cross multiply
    7,443,979.20x = 11,165,968.80 × 7,129,051.20
  4. Step 4: Simplify right side
    7,443,979.20x = 79,602,763,272,802.56
  5. Step 5: Solve for x
    x = 79,602,763,272,802.56/7,443,979.20
  6. Step 6: Final answer
    x = 10,693,576.80

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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.