Home / 72,775,409.64-100,429,303.62-39,735,556.36

Finding the Fourth Proportional to 72,775,409.64, 100,429,303.62 and 39,735,556.36

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Solution

The fourth proportional to 72,775,409.64, 100,429,303.62 and 39,735,556.36 is: 54,834,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,775,409.64 : 100,429,303.62 = 39,735,556.36 : x
  2. Step 2: Convert to fraction form
    72,775,409.64/100,429,303.62 = 39,735,556.36/x
  3. Step 3: Cross multiply
    72,775,409.64x = 100,429,303.62 × 39,735,556.36
  4. Step 4: Simplify right side
    72,775,409.64x = 3,990,614,254,188,062
  5. Step 5: Solve for x
    x = 3,990,614,254,188,062/72,775,409.64
  6. Step 6: Final answer
    x = 54,834,651.90

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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.