Home / 458,291,846.91-687,419,127.41-113,236,784.67

Finding the Fourth Proportional to 458,291,846.91, 687,419,127.41 and 113,236,784.67

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Solution

The fourth proportional to 458,291,846.91, 687,419,127.41 and 113,236,784.67 is: 169,850,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,291,846.91 : 687,419,127.41 = 113,236,784.67 : x
  2. Step 2: Convert to fraction form
    458,291,846.91/687,419,127.41 = 113,236,784.67/x
  3. Step 3: Cross multiply
    458,291,846.91x = 687,419,127.41 × 113,236,784.67
  4. Step 4: Simplify right side
    458,291,846.91x = 77,841,131,707,999,280
  5. Step 5: Solve for x
    x = 77,841,131,707,999,280/458,291,846.91
  6. Step 6: Final answer
    x = 169,850,570.62

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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.