Home / 570,175,519.38-786,842,222.94-309,415,135.38

Finding the Fourth Proportional to 570,175,519.38, 786,842,222.94 and 309,415,135.38

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Solution

The fourth proportional to 570,175,519.38, 786,842,222.94 and 309,415,135.38 is: 426,992,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,175,519.38 : 786,842,222.94 = 309,415,135.38 : x
  2. Step 2: Convert to fraction form
    570,175,519.38/786,842,222.94 = 309,415,135.38/x
  3. Step 3: Cross multiply
    570,175,519.38x = 786,842,222.94 × 309,415,135.38
  4. Step 4: Simplify right side
    570,175,519.38x = 243,460,892,933,680,256
  5. Step 5: Solve for x
    x = 243,460,892,933,680,256/570,175,519.38
  6. Step 6: Final answer
    x = 426,992,890.19

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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.