Home / 38,409,156.28-53,005,409.04-21,006,620.56

Finding the Fourth Proportional to 38,409,156.28, 53,005,409.04 and 21,006,620.56

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Solution

The fourth proportional to 38,409,156.28, 53,005,409.04 and 21,006,620.56 is: 28,989,559.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,409,156.28 : 53,005,409.04 = 21,006,620.56 : x
  2. Step 2: Convert to fraction form
    38,409,156.28/53,005,409.04 = 21,006,620.56/x
  3. Step 3: Cross multiply
    38,409,156.28x = 53,005,409.04 × 21,006,620.56
  4. Step 4: Simplify right side
    38,409,156.28x = 1,113,464,515,330,873.75
  5. Step 5: Solve for x
    x = 1,113,464,515,330,873.75/38,409,156.28
  6. Step 6: Final answer
    x = 28,989,559.34

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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.