Home / 458,339,840.20-686,501,990.70-397,873,664.20

Finding the Fourth Proportional to 458,339,840.20, 686,501,990.70 and 397,873,664.20

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Solution

The fourth proportional to 458,339,840.20, 686,501,990.70 and 397,873,664.20 is: 595,935,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,339,840.20 : 686,501,990.70 = 397,873,664.20 : x
  2. Step 2: Convert to fraction form
    458,339,840.20/686,501,990.70 = 397,873,664.20/x
  3. Step 3: Cross multiply
    458,339,840.20x = 686,501,990.70 × 397,873,664.20
  4. Step 4: Simplify right side
    458,339,840.20x = 273,141,062,520,403,328
  5. Step 5: Solve for x
    x = 273,141,062,520,403,328/458,339,840.20
  6. Step 6: Final answer
    x = 595,935,676.03

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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.