Finding the Fourth Proportional to 403,878,181.96, 557,351,867.46 and 218,239,192.36
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Solution
The fourth proportional to 403,878,181.96, 557,351,867.46 and 218,239,192.36 is: 301,170,072.68
Step by Step Solution
- Step 1: Write the proportion equation
403,878,181.96 : 557,351,867.46 = 218,239,192.36 : x - Step 2: Convert to fraction form
403,878,181.96/557,351,867.46 = 218,239,192.36/x - Step 3: Cross multiply
403,878,181.96x = 557,351,867.46 × 218,239,192.36 - Step 4: Simplify right side
403,878,181.96x = 121,636,021,414,808,176 - Step 5: Solve for x
x = 121,636,021,414,808,176/403,878,181.96 - Step 6: Final answer
x = 301,170,072.68
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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.