Home / 507,809,132.53-700,853,201.60-309,685,556.12

Finding the Fourth Proportional to 507,809,132.53, 700,853,201.60 and 309,685,556.12

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Solution

The fourth proportional to 507,809,132.53, 700,853,201.60 and 309,685,556.12 is: 427,412,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,809,132.53 : 700,853,201.60 = 309,685,556.12 : x
  2. Step 2: Convert to fraction form
    507,809,132.53/700,853,201.60 = 309,685,556.12/x
  3. Step 3: Cross multiply
    507,809,132.53x = 700,853,201.60 × 309,685,556.12
  4. Step 4: Simplify right side
    507,809,132.53x = 217,044,113,490,925,792
  5. Step 5: Solve for x
    x = 217,044,113,490,925,792/507,809,132.53
  6. Step 6: Final answer
    x = 427,412,780.88

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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.