Home / 72,867,431.34-100,556,811.11-39,827,661.35

Finding the Fourth Proportional to 72,867,431.34, 100,556,811.11 and 39,827,661.35

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Solution

The fourth proportional to 72,867,431.34, 100,556,811.11 and 39,827,661.35 is: 54,962,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,867,431.34 : 100,556,811.11 = 39,827,661.35 : x
  2. Step 2: Convert to fraction form
    72,867,431.34/100,556,811.11 = 39,827,661.35/x
  3. Step 3: Cross multiply
    72,867,431.34x = 100,556,811.11 × 39,827,661.35
  4. Step 4: Simplify right side
    72,867,431.34x = 4,004,942,618,921,782.50
  5. Step 5: Solve for x
    x = 4,004,942,618,921,782.50/72,867,431.34
  6. Step 6: Final answer
    x = 54,962,039.22

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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.