Home / 20,323,216.79-28,045,687.21-11,030,587.46

Finding the Fourth Proportional to 20,323,216.79, 28,045,687.21 and 11,030,587.46

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Solution

The fourth proportional to 20,323,216.79, 28,045,687.21 and 11,030,587.46 is: 15,222,019.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323,216.79 : 28,045,687.21 = 11,030,587.46 : x
  2. Step 2: Convert to fraction form
    20,323,216.79/28,045,687.21 = 11,030,587.46/x
  3. Step 3: Cross multiply
    20,323,216.79x = 28,045,687.21 × 11,030,587.46
  4. Step 4: Simplify right side
    20,323,216.79x = 309,360,405,477,903.50
  5. Step 5: Solve for x
    x = 309,360,405,477,903.50/20,323,216.79
  6. Step 6: Final answer
    x = 15,222,019.66

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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.