Home / 420,302,310.96-580,018,313.88-234,669,969.12

Finding the Fourth Proportional to 420,302,310.96, 580,018,313.88 and 234,669,969.12

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Solution

The fourth proportional to 420,302,310.96, 580,018,313.88 and 234,669,969.12 is: 323,845,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,302,310.96 : 580,018,313.88 = 234,669,969.12 : x
  2. Step 2: Convert to fraction form
    420,302,310.96/580,018,313.88 = 234,669,969.12/x
  3. Step 3: Cross multiply
    420,302,310.96x = 580,018,313.88 × 234,669,969.12
  4. Step 4: Simplify right side
    420,302,310.96x = 136,112,879,807,254,064
  5. Step 5: Solve for x
    x = 136,112,879,807,254,064/420,302,310.96
  6. Step 6: Final answer
    x = 323,845,185.38

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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.