Home / 38,922,361.85-53,713,980.65-21,519,830.63

Finding the Fourth Proportional to 38,922,361.85, 53,713,980.65 and 21,519,830.63

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Solution

The fourth proportional to 38,922,361.85, 53,713,980.65 and 21,519,830.63 is: 29,697,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,922,361.85 : 53,713,980.65 = 21,519,830.63 : x
  2. Step 2: Convert to fraction form
    38,922,361.85/53,713,980.65 = 21,519,830.63/x
  3. Step 3: Cross multiply
    38,922,361.85x = 53,713,980.65 × 21,519,830.63
  4. Step 4: Simplify right side
    38,922,361.85x = 1,155,915,766,051,097.25
  5. Step 5: Solve for x
    x = 1,155,915,766,051,097.25/38,922,361.85
  6. Step 6: Final answer
    x = 29,697,986.22

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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.