Home / 72,768,014.90-109,152,022.35-36,382,021.10

Finding the Fourth Proportional to 72,768,014.90, 109,152,022.35 and 36,382,021.10

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Solution

The fourth proportional to 72,768,014.90, 109,152,022.35 and 36,382,021.10 is: 54,573,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768,014.90 : 109,152,022.35 = 36,382,021.10 : x
  2. Step 2: Convert to fraction form
    72,768,014.90/109,152,022.35 = 36,382,021.10/x
  3. Step 3: Cross multiply
    72,768,014.90x = 109,152,022.35 × 36,382,021.10
  4. Step 4: Simplify right side
    72,768,014.90x = 3,971,171,180,245,371.50
  5. Step 5: Solve for x
    x = 3,971,171,180,245,371.50/72,768,014.90
  6. Step 6: Final answer
    x = 54,573,031.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.