Home / 309,681,444.21-427,142,814.33-203,801,125.11

Finding the Fourth Proportional to 309,681,444.21, 427,142,814.33 and 203,801,125.11

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Solution

The fourth proportional to 309,681,444.21, 427,142,814.33 and 203,801,125.11 is: 281,102,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,681,444.21 : 427,142,814.33 = 203,801,125.11 : x
  2. Step 2: Convert to fraction form
    309,681,444.21/427,142,814.33 = 203,801,125.11/x
  3. Step 3: Cross multiply
    309,681,444.21x = 427,142,814.33 × 203,801,125.11
  4. Step 4: Simplify right side
    309,681,444.21x = 87,052,186,143,105,840
  5. Step 5: Solve for x
    x = 87,052,186,143,105,840/309,681,444.21
  6. Step 6: Final answer
    x = 281,102,364.29

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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.