Home / 630,089,514.78-869,500,743.39-347,825,896.14

Finding the Fourth Proportional to 630,089,514.78, 869,500,743.39 and 347,825,896.14

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Solution

The fourth proportional to 630,089,514.78, 869,500,743.39 and 347,825,896.14 is: 479,987,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,089,514.78 : 869,500,743.39 = 347,825,896.14 : x
  2. Step 2: Convert to fraction form
    630,089,514.78/869,500,743.39 = 347,825,896.14/x
  3. Step 3: Cross multiply
    630,089,514.78x = 869,500,743.39 × 347,825,896.14
  4. Step 4: Simplify right side
    630,089,514.78x = 302,434,875,264,022,912
  5. Step 5: Solve for x
    x = 302,434,875,264,022,912/630,089,514.78
  6. Step 6: Final answer
    x = 479,987,157.65

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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.