Home / 21,030,804.39-31,519,670.60-10,658,629.53

Finding the Fourth Proportional to 21,030,804.39, 31,519,670.60 and 10,658,629.53

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Solution

The fourth proportional to 21,030,804.39, 31,519,670.60 and 10,658,629.53 is: 15,974,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,804.39 : 31,519,670.60 = 10,658,629.53 : x
  2. Step 2: Convert to fraction form
    21,030,804.39/31,519,670.60 = 10,658,629.53/x
  3. Step 3: Cross multiply
    21,030,804.39x = 31,519,670.60 × 10,658,629.53
  4. Step 4: Simplify right side
    21,030,804.39x = 335,956,491,859,679.38
  5. Step 5: Solve for x
    x = 335,956,491,859,679.38/21,030,804.39
  6. Step 6: Final answer
    x = 15,974,495.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.