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Finding the Fourth Proportional to 399,358,866.48, 599,102,669.34 and 123,009,952.14

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Solution

The fourth proportional to 399,358,866.48, 599,102,669.34 and 123,009,952.14 is: 184,534,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,358,866.48 : 599,102,669.34 = 123,009,952.14 : x
  2. Step 2: Convert to fraction form
    399,358,866.48/599,102,669.34 = 123,009,952.14/x
  3. Step 3: Cross multiply
    399,358,866.48x = 599,102,669.34 × 123,009,952.14
  4. Step 4: Simplify right side
    399,358,866.48x = 73,695,590,682,459,648
  5. Step 5: Solve for x
    x = 73,695,590,682,459,648/399,358,866.48
  6. Step 6: Final answer
    x = 184,534,755.25

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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.