Home / 1,180,902,197.89-1,771,401,707.30-405,081,395.29

Finding the Fourth Proportional to 1,180,902,197.89, 1,771,401,707.30 and 405,081,395.29

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Solution

The fourth proportional to 1,180,902,197.89, 1,771,401,707.30 and 405,081,395.29 is: 607,638,699.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,902,197.89 : 1,771,401,707.30 = 405,081,395.29 : x
  2. Step 2: Convert to fraction form
    1,180,902,197.89/1,771,401,707.30 = 405,081,395.29/x
  3. Step 3: Cross multiply
    1,180,902,197.89x = 1,771,401,707.30 × 405,081,395.29
  4. Step 4: Simplify right side
    1,180,902,197.89x = 717,561,875,212,172,160
  5. Step 5: Solve for x
    x = 717,561,875,212,172,160/1,180,902,197.89
  6. Step 6: Final answer
    x = 607,638,699.03

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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.