Home / 393,953,061.96-590,960,099.21-131,638,521.24

Finding the Fourth Proportional to 393,953,061.96, 590,960,099.21 and 131,638,521.24

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Solution

The fourth proportional to 393,953,061.96, 590,960,099.21 and 131,638,521.24 is: 197,467,975.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,953,061.96 : 590,960,099.21 = 131,638,521.24 : x
  2. Step 2: Convert to fraction form
    393,953,061.96/590,960,099.21 = 131,638,521.24/x
  3. Step 3: Cross multiply
    393,953,061.96x = 590,960,099.21 × 131,638,521.24
  4. Step 4: Simplify right side
    393,953,061.96x = 77,793,113,571,189,904
  5. Step 5: Solve for x
    x = 77,793,113,571,189,904/393,953,061.96
  6. Step 6: Final answer
    x = 197,467,975.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.