Home / 442,867,999.90-664,301,999.85-258,446,163.10

Finding the Fourth Proportional to 442,867,999.90, 664,301,999.85 and 258,446,163.10

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Solution

The fourth proportional to 442,867,999.90, 664,301,999.85 and 258,446,163.10 is: 387,669,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,999.90 : 664,301,999.85 = 258,446,163.10 : x
  2. Step 2: Convert to fraction form
    442,867,999.90/664,301,999.85 = 258,446,163.10/x
  3. Step 3: Cross multiply
    442,867,999.90x = 664,301,999.85 × 258,446,163.10
  4. Step 4: Simplify right side
    442,867,999.90x = 171,686,303,000,889,280
  5. Step 5: Solve for x
    x = 171,686,303,000,889,280/442,867,999.90
  6. Step 6: Final answer
    x = 387,669,244.65

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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.