Home / 258,458,964.48-387,802,236.47-135,607,658.40

Finding the Fourth Proportional to 258,458,964.48, 387,802,236.47 and 135,607,658.40

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Solution

The fourth proportional to 258,458,964.48, 387,802,236.47 and 135,607,658.40 is: 203,471,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,458,964.48 : 387,802,236.47 = 135,607,658.40 : x
  2. Step 2: Convert to fraction form
    258,458,964.48/387,802,236.47 = 135,607,658.40/x
  3. Step 3: Cross multiply
    258,458,964.48x = 387,802,236.47 × 135,607,658.40
  4. Step 4: Simplify right side
    258,458,964.48x = 52,588,953,209,301,744
  5. Step 5: Solve for x
    x = 52,588,953,209,301,744/258,458,964.48
  6. Step 6: Final answer
    x = 203,471,190.54

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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.