Home / 507,809,133.03-700,853,202.29-309,685,556.62

Finding the Fourth Proportional to 507,809,133.03, 700,853,202.29 and 309,685,556.62

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Solution

The fourth proportional to 507,809,133.03, 700,853,202.29 and 309,685,556.62 is: 427,412,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,809,133.03 : 700,853,202.29 = 309,685,556.62 : x
  2. Step 2: Convert to fraction form
    507,809,133.03/700,853,202.29 = 309,685,556.62/x
  3. Step 3: Cross multiply
    507,809,133.03x = 700,853,202.29 × 309,685,556.62
  4. Step 4: Simplify right side
    507,809,133.03x = 217,044,114,055,035,424
  5. Step 5: Solve for x
    x = 217,044,114,055,035,424/507,809,133.03
  6. Step 6: Final answer
    x = 427,412,781.57

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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.