Home / 13,421,643.41-18,523,971.53-7,915,623.46

Finding the Fourth Proportional to 13,421,643.41, 18,523,971.53 and 7,915,623.46

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Solution

The fourth proportional to 13,421,643.41, 18,523,971.53 and 7,915,623.46 is: 10,924,801.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421,643.41 : 18,523,971.53 = 7,915,623.46 : x
  2. Step 2: Convert to fraction form
    13,421,643.41/18,523,971.53 = 7,915,623.46/x
  3. Step 3: Cross multiply
    13,421,643.41x = 18,523,971.53 × 7,915,623.46
  4. Step 4: Simplify right side
    13,421,643.41x = 146,628,783,615,240.09
  5. Step 5: Solve for x
    x = 146,628,783,615,240.09/13,421,643.41
  6. Step 6: Final answer
    x = 10,924,801.02

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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.