Home / 14,270,620-19,693,242.64-8,390,918.56

Finding the Fourth Proportional to 14,270,620, 19,693,242.64 and 8,390,918.56

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Solution

The fourth proportional to 14,270,620, 19,693,242.64 and 8,390,918.56 is: 11,579,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,270,620 : 19,693,242.64 = 8,390,918.56 : x
  2. Step 2: Convert to fraction form
    14,270,620/19,693,242.64 = 8,390,918.56/x
  3. Step 3: Cross multiply
    14,270,620x = 19,693,242.64 × 8,390,918.56
  4. Step 4: Simplify right side
    14,270,620x = 165,244,395,174,559.41
  5. Step 5: Solve for x
    x = 165,244,395,174,559.41/14,270,620
  6. Step 6: Final answer
    x = 11,579,342.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.