Home / 289,322,215.26-399,264,812.56-158,950,421.34

Finding the Fourth Proportional to 289,322,215.26, 399,264,812.56 and 158,950,421.34

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Solution

The fourth proportional to 289,322,215.26, 399,264,812.56 and 158,950,421.34 is: 219,351,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,322,215.26 : 399,264,812.56 = 158,950,421.34 : x
  2. Step 2: Convert to fraction form
    289,322,215.26/399,264,812.56 = 158,950,421.34/x
  3. Step 3: Cross multiply
    289,322,215.26x = 399,264,812.56 × 158,950,421.34
  4. Step 4: Simplify right side
    289,322,215.26x = 63,463,310,182,648,128
  5. Step 5: Solve for x
    x = 63,463,310,182,648,128/289,322,215.26
  6. Step 6: Final answer
    x = 219,351,666.88

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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.