Home / 13,633,258.96-18,813,790.38-7,438,214.80

Finding the Fourth Proportional to 13,633,258.96, 18,813,790.38 and 7,438,214.80

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Solution

The fourth proportional to 13,633,258.96, 18,813,790.38 and 7,438,214.80 is: 10,264,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633,258.96 : 18,813,790.38 = 7,438,214.80 : x
  2. Step 2: Convert to fraction form
    13,633,258.96/18,813,790.38 = 7,438,214.80/x
  3. Step 3: Cross multiply
    13,633,258.96x = 18,813,790.38 × 7,438,214.80
  4. Step 4: Simplify right side
    13,633,258.96x = 139,941,014,048,613.61
  5. Step 5: Solve for x
    x = 139,941,014,048,613.61/13,633,258.96
  6. Step 6: Final answer
    x = 10,264,678.05

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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.