Home / 13,326,369.77-18,390,511.96-7,819,836.39

Finding the Fourth Proportional to 13,326,369.77, 18,390,511.96 and 7,819,836.39

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Solution

The fourth proportional to 13,326,369.77, 18,390,511.96 and 7,819,836.39 is: 10,791,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326,369.77 : 18,390,511.96 = 7,819,836.39 : x
  2. Step 2: Convert to fraction form
    13,326,369.77/18,390,511.96 = 7,819,836.39/x
  3. Step 3: Cross multiply
    13,326,369.77x = 18,390,511.96 × 7,819,836.39
  4. Step 4: Simplify right side
    13,326,369.77x = 143,810,794,631,636.81
  5. Step 5: Solve for x
    x = 143,810,794,631,636.81/13,326,369.77
  6. Step 6: Final answer
    x = 10,791,445.62

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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.