Home / 400,423,503.36-600,415,812.12-123,997,975.44

Finding the Fourth Proportional to 400,423,503.36, 600,415,812.12 and 123,997,975.44

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Solution

The fourth proportional to 400,423,503.36, 600,415,812.12 and 123,997,975.44 is: 185,929,008.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,423,503.36 : 600,415,812.12 = 123,997,975.44 : x
  2. Step 2: Convert to fraction form
    400,423,503.36/600,415,812.12 = 123,997,975.44/x
  3. Step 3: Cross multiply
    400,423,503.36x = 600,415,812.12 × 123,997,975.44
  4. Step 4: Simplify right side
    400,423,503.36x = 74,450,345,125,043,408
  5. Step 5: Solve for x
    x = 74,450,345,125,043,408/400,423,503.36
  6. Step 6: Final answer
    x = 185,929,008.91

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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.