Home / 72,651,400.40-100,259,714.58-39,611,379.62

Finding the Fourth Proportional to 72,651,400.40, 100,259,714.58 and 39,611,379.62

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Solution

The fourth proportional to 72,651,400.40, 100,259,714.58 and 39,611,379.62 is: 54,664,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,651,400.40 : 100,259,714.58 = 39,611,379.62 : x
  2. Step 2: Convert to fraction form
    72,651,400.40/100,259,714.58 = 39,611,379.62/x
  3. Step 3: Cross multiply
    72,651,400.40x = 100,259,714.58 × 39,611,379.62
  4. Step 4: Simplify right side
    72,651,400.40x = 3,971,425,614,821,228.50
  5. Step 5: Solve for x
    x = 3,971,425,614,821,228.50/72,651,400.40
  6. Step 6: Final answer
    x = 54,664,130.26

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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.