Home / 72,740,779.22-100,380,852.44-39,701,265.19

Finding the Fourth Proportional to 72,740,779.22, 100,380,852.44 and 39,701,265.19

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Solution

The fourth proportional to 72,740,779.22, 100,380,852.44 and 39,701,265.19 is: 54,786,969.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,740,779.22 : 100,380,852.44 = 39,701,265.19 : x
  2. Step 2: Convert to fraction form
    72,740,779.22/100,380,852.44 = 39,701,265.19/x
  3. Step 3: Cross multiply
    72,740,779.22x = 100,380,852.44 × 39,701,265.19
  4. Step 4: Simplify right side
    72,740,779.22x = 3,985,246,842,587,342.50
  5. Step 5: Solve for x
    x = 3,985,246,842,587,342.50/72,740,779.22
  6. Step 6: Final answer
    x = 54,786,969.36

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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.