Home / 28,156,188-38,855,539.44-15,279,132

Finding the Fourth Proportional to 28,156,188, 38,855,539.44 and 15,279,132

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Solution

The fourth proportional to 28,156,188, 38,855,539.44 and 15,279,132 is: 21,085,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156,188 : 38,855,539.44 = 15,279,132 : x
  2. Step 2: Convert to fraction form
    28,156,188/38,855,539.44 = 15,279,132/x
  3. Step 3: Cross multiply
    28,156,188x = 38,855,539.44 × 15,279,132
  4. Step 4: Simplify right side
    28,156,188x = 593,678,916,034,966
  5. Step 5: Solve for x
    x = 593,678,916,034,966/28,156,188
  6. Step 6: Final answer
    x = 21,085,202.16

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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.