Home / 228,364,129.58-315,142,802.88-123,942,200.90

Finding the Fourth Proportional to 228,364,129.58, 315,142,802.88 and 123,942,200.90

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Solution

The fourth proportional to 228,364,129.58, 315,142,802.88 and 123,942,200.90 is: 171,040,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,364,129.58 : 315,142,802.88 = 123,942,200.90 : x
  2. Step 2: Convert to fraction form
    228,364,129.58/315,142,802.88 = 123,942,200.90/x
  3. Step 3: Cross multiply
    228,364,129.58x = 315,142,802.88 × 123,942,200.90
  4. Step 4: Simplify right side
    228,364,129.58x = 39,059,492,586,742,056
  5. Step 5: Solve for x
    x = 39,059,492,586,742,056/228,364,129.58
  6. Step 6: Final answer
    x = 171,040,402.27

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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.