Home / 20,684,610-28,546,778.04-15,448,527.75

Finding the Fourth Proportional to 20,684,610, 28,546,778.04 and 15,448,527.75

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Solution

The fourth proportional to 20,684,610, 28,546,778.04 and 15,448,527.75 is: 21,320,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,610 : 28,546,778.04 = 15,448,527.75 : x
  2. Step 2: Convert to fraction form
    20,684,610/28,546,778.04 = 15,448,527.75/x
  3. Step 3: Cross multiply
    20,684,610x = 28,546,778.04 × 15,448,527.75
  4. Step 4: Simplify right side
    20,684,610x = 441,005,692,646,788
  5. Step 5: Solve for x
    x = 441,005,692,646,788/20,684,610
  6. Step 6: Final answer
    x = 21,320,474.14

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1.5x scale

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.