Home / 420,302,316.21-580,018,321.13-234,669,974.37

Finding the Fourth Proportional to 420,302,316.21, 580,018,321.13 and 234,669,974.37

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Solution

The fourth proportional to 420,302,316.21, 580,018,321.13 and 234,669,974.37 is: 323,845,192.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,302,316.21 : 580,018,321.13 = 234,669,974.37 : x
  2. Step 2: Convert to fraction form
    420,302,316.21/580,018,321.13 = 234,669,974.37/x
  3. Step 3: Cross multiply
    420,302,316.21x = 580,018,321.13 × 234,669,974.37
  4. Step 4: Simplify right side
    420,302,316.21x = 136,112,884,552,534,176
  5. Step 5: Solve for x
    x = 136,112,884,552,534,176/420,302,316.21
  6. Step 6: Final answer
    x = 323,845,192.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.