Home / 13,700,439.27-18,905,811.69-7,504,407.30

Finding the Fourth Proportional to 13,700,439.27, 18,905,811.69 and 7,504,407.30

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Solution

The fourth proportional to 13,700,439.27, 18,905,811.69 and 7,504,407.30 is: 10,355,646.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700,439.27 : 18,905,811.69 = 7,504,407.30 : x
  2. Step 2: Convert to fraction form
    13,700,439.27/18,905,811.69 = 7,504,407.30/x
  3. Step 3: Cross multiply
    13,700,439.27x = 18,905,811.69 × 7,504,407.30
  4. Step 4: Simplify right side
    13,700,439.27x = 141,876,911,258,861.34
  5. Step 5: Solve for x
    x = 141,876,911,258,861.34/13,700,439.27
  6. Step 6: Final answer
    x = 10,355,646.89

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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.