Home / 13,692,326.96-18,895,920.60-7,812,918.32

Finding the Fourth Proportional to 13,692,326.96, 18,895,920.60 and 7,812,918.32

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Solution

The fourth proportional to 13,692,326.96, 18,895,920.60 and 7,812,918.32 is: 10,782,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692,326.96 : 18,895,920.60 = 7,812,918.32 : x
  2. Step 2: Convert to fraction form
    13,692,326.96/18,895,920.60 = 7,812,918.32/x
  3. Step 3: Cross multiply
    13,692,326.96x = 18,895,920.60 × 7,812,918.32
  4. Step 4: Simplify right side
    13,692,326.96x = 147,632,284,229,005.41
  5. Step 5: Solve for x
    x = 147,632,284,229,005.41/13,692,326.96
  6. Step 6: Final answer
    x = 10,782,117.95

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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.