Home / 13,421,642.41-18,523,970.15-7,915,622.46

Finding the Fourth Proportional to 13,421,642.41, 18,523,970.15 and 7,915,622.46

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Solution

The fourth proportional to 13,421,642.41, 18,523,970.15 and 7,915,622.46 is: 10,924,799.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421,642.41 : 18,523,970.15 = 7,915,622.46 : x
  2. Step 2: Convert to fraction form
    13,421,642.41/18,523,970.15 = 7,915,622.46/x
  3. Step 3: Cross multiply
    13,421,642.41x = 18,523,970.15 × 7,915,622.46
  4. Step 4: Simplify right side
    13,421,642.41x = 146,628,754,167,709.56
  5. Step 5: Solve for x
    x = 146,628,754,167,709.56/13,421,642.41
  6. Step 6: Final answer
    x = 10,924,799.64

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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.