Home / 21,430,722.42-29,562,617.52-13,575,849.48

Finding the Fourth Proportional to 21,430,722.42, 29,562,617.52 and 13,575,849.48

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Solution

The fourth proportional to 21,430,722.42, 29,562,617.52 and 13,575,849.48 is: 18,727,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430,722.42 : 29,562,617.52 = 13,575,849.48 : x
  2. Step 2: Convert to fraction form
    21,430,722.42/29,562,617.52 = 13,575,849.48/x
  3. Step 3: Cross multiply
    21,430,722.42x = 29,562,617.52 × 13,575,849.48
  4. Step 4: Simplify right side
    21,430,722.42x = 401,337,645,686,330.88
  5. Step 5: Solve for x
    x = 401,337,645,686,330.88/21,430,722.42
  6. Step 6: Final answer
    x = 18,727,210.30

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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.