Home / 21,031,289.21-29,038,554.27-13,593,352.60

Finding the Fourth Proportional to 21,031,289.21, 29,038,554.27 and 13,593,352.60

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Solution

The fourth proportional to 21,031,289.21, 29,038,554.27 and 13,593,352.60 is: 18,768,764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,289.21 : 29,038,554.27 = 13,593,352.60 : x
  2. Step 2: Convert to fraction form
    21,031,289.21/29,038,554.27 = 13,593,352.60/x
  3. Step 3: Cross multiply
    21,031,289.21x = 29,038,554.27 × 13,593,352.60
  4. Step 4: Simplify right side
    21,031,289.21x = 394,731,307,222,643.81
  5. Step 5: Solve for x
    x = 394,731,307,222,643.81/21,031,289.21
  6. Step 6: Final answer
    x = 18,768,764.16

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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.