Home / 18,453,009.20-27,679,513.80-7,093,828.40

Finding the Fourth Proportional to 18,453,009.20, 27,679,513.80 and 7,093,828.40

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Solution

The fourth proportional to 18,453,009.20, 27,679,513.80 and 7,093,828.40 is: 10,640,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453,009.20 : 27,679,513.80 = 7,093,828.40 : x
  2. Step 2: Convert to fraction form
    18,453,009.20/27,679,513.80 = 7,093,828.40/x
  3. Step 3: Cross multiply
    18,453,009.20x = 27,679,513.80 × 7,093,828.40
  4. Step 4: Simplify right side
    18,453,009.20x = 196,353,721,092,631.94
  5. Step 5: Solve for x
    x = 196,353,721,092,631.94/18,453,009.20
  6. Step 6: Final answer
    x = 10,640,742.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.