Home / 21,030,579.90-31,554,727.20-11,452,832.10

Finding the Fourth Proportional to 21,030,579.90, 31,554,727.20 and 11,452,832.10

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Solution

The fourth proportional to 21,030,579.90, 31,554,727.20 and 11,452,832.10 is: 17,184,071.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,579.90 : 31,554,727.20 = 11,452,832.10 : x
  2. Step 2: Convert to fraction form
    21,030,579.90/31,554,727.20 = 11,452,832.10/x
  3. Step 3: Cross multiply
    21,030,579.90x = 31,554,727.20 × 11,452,832.10
  4. Step 4: Simplify right side
    21,030,579.90x = 361,390,992,582,903.12
  5. Step 5: Solve for x
    x = 361,390,992,582,903.12/21,030,579.90
  6. Step 6: Final answer
    x = 17,184,071.69

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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.