Home / 1,324,510,181.76-1,987,152,962.58-427,098,910.95

Finding the Fourth Proportional to 1,324,510,181.76, 1,987,152,962.58 and 427,098,910.95

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Solution

The fourth proportional to 1,324,510,181.76, 1,987,152,962.58 and 427,098,910.95 is: 640,773,380.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,510,181.76 : 1,987,152,962.58 = 427,098,910.95 : x
  2. Step 2: Convert to fraction form
    1,324,510,181.76/1,987,152,962.58 = 427,098,910.95/x
  3. Step 3: Cross multiply
    1,324,510,181.76x = 1,987,152,962.58 × 427,098,910.95
  4. Step 4: Simplify right side
    1,324,510,181.76x = 848,710,866,214,343,936
  5. Step 5: Solve for x
    x = 848,710,866,214,343,936/1,324,510,181.76
  6. Step 6: Final answer
    x = 640,773,380.15

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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.