Home / 72,483,955.45-100,027,873.32-39,888,907.45

Finding the Fourth Proportional to 72,483,955.45, 100,027,873.32 and 39,888,907.45

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Solution

The fourth proportional to 72,483,955.45, 100,027,873.32 and 39,888,907.45 is: 55,046,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,483,955.45 : 100,027,873.32 = 39,888,907.45 : x
  2. Step 2: Convert to fraction form
    72,483,955.45/100,027,873.32 = 39,888,907.45/x
  3. Step 3: Cross multiply
    72,483,955.45x = 100,027,873.32 × 39,888,907.45
  4. Step 4: Simplify right side
    72,483,955.45x = 3,990,002,580,882,151
  5. Step 5: Solve for x
    x = 3,990,002,580,882,151/72,483,955.45
  6. Step 6: Final answer
    x = 55,046,700.42

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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.