Home / 421,894,911.03-582,159,764.43-243,285,396.23

Finding the Fourth Proportional to 421,894,911.03, 582,159,764.43 and 243,285,396.23

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Solution

The fourth proportional to 421,894,911.03, 582,159,764.43 and 243,285,396.23 is: 335,702,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,894,911.03 : 582,159,764.43 = 243,285,396.23 : x
  2. Step 2: Convert to fraction form
    421,894,911.03/582,159,764.43 = 243,285,396.23/x
  3. Step 3: Cross multiply
    421,894,911.03x = 582,159,764.43 × 243,285,396.23
  4. Step 4: Simplify right side
    421,894,911.03x = 141,630,968,955,605,200
  5. Step 5: Solve for x
    x = 141,630,968,955,605,200/421,894,911.03
  6. Step 6: Final answer
    x = 335,702,008.37

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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.