Home / 756,669,661.60-1,135,004,492.40-411,489,911.20

Finding the Fourth Proportional to 756,669,661.60, 1,135,004,492.40 and 411,489,911.20

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Solution

The fourth proportional to 756,669,661.60, 1,135,004,492.40 and 411,489,911.20 is: 617,234,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,669,661.60 : 1,135,004,492.40 = 411,489,911.20 : x
  2. Step 2: Convert to fraction form
    756,669,661.60/1,135,004,492.40 = 411,489,911.20/x
  3. Step 3: Cross multiply
    756,669,661.60x = 1,135,004,492.40 × 411,489,911.20
  4. Step 4: Simplify right side
    756,669,661.60x = 467,042,897,789,277,120
  5. Step 5: Solve for x
    x = 467,042,897,789,277,120/756,669,661.60
  6. Step 6: Final answer
    x = 617,234,866.80

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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.