Home / 21,054,539.55-29,039,265.93-18,119,238.48

Finding the Fourth Proportional to 21,054,539.55, 29,039,265.93 and 18,119,238.48

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Solution

The fourth proportional to 21,054,539.55, 29,039,265.93 and 18,119,238.48 is: 24,990,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,539.55 : 29,039,265.93 = 18,119,238.48 : x
  2. Step 2: Convert to fraction form
    21,054,539.55/29,039,265.93 = 18,119,238.48/x
  3. Step 3: Cross multiply
    21,054,539.55x = 29,039,265.93 × 18,119,238.48
  4. Step 4: Simplify right side
    21,054,539.55x = 526,169,384,669,809
  5. Step 5: Solve for x
    x = 526,169,384,669,809/21,054,539.55
  6. Step 6: Final answer
    x = 24,990,780.89

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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.