Home / 28,545,581.40-39,392,941.31-15,492,840.49

Finding the Fourth Proportional to 28,545,581.40, 39,392,941.31 and 15,492,840.49

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Solution

The fourth proportional to 28,545,581.40, 39,392,941.31 and 15,492,840.49 is: 21,380,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545,581.40 : 39,392,941.31 = 15,492,840.49 : x
  2. Step 2: Convert to fraction form
    28,545,581.40/39,392,941.31 = 15,492,840.49/x
  3. Step 3: Cross multiply
    28,545,581.40x = 39,392,941.31 × 15,492,840.49
  4. Step 4: Simplify right side
    28,545,581.40x = 610,308,556,147,761.75
  5. Step 5: Solve for x
    x = 610,308,556,147,761.75/28,545,581.40
  6. Step 6: Final answer
    x = 21,380,141.03

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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.