Home / 13,578,416.54-18,733,629.22-7,697,420.18

Finding the Fourth Proportional to 13,578,416.54, 18,733,629.22 and 7,697,420.18

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Solution

The fourth proportional to 13,578,416.54, 18,733,629.22 and 7,697,420.18 is: 10,619,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,416.54 : 18,733,629.22 = 7,697,420.18 : x
  2. Step 2: Convert to fraction form
    13,578,416.54/18,733,629.22 = 7,697,420.18/x
  3. Step 3: Cross multiply
    13,578,416.54x = 18,733,629.22 × 7,697,420.18
  4. Step 4: Simplify right side
    13,578,416.54x = 144,200,615,602,665.66
  5. Step 5: Solve for x
    x = 144,200,615,602,665.66/13,578,416.54
  6. Step 6: Final answer
    x = 10,619,840.33

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1.5x scale

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.