Finding the Fourth Proportional to 313,539,005.38, 432,711,397.66 and 172,435,090.84
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Solution
The fourth proportional to 313,539,005.38, 432,711,397.66 and 172,435,090.84 is: 237,975,587.99
Step by Step Solution
- Step 1: Write the proportion equation
313,539,005.38 : 432,711,397.66 = 172,435,090.84 : x - Step 2: Convert to fraction form
313,539,005.38/432,711,397.66 = 172,435,090.84/x - Step 3: Cross multiply
313,539,005.38x = 432,711,397.66 × 172,435,090.84 - Step 4: Simplify right side
313,539,005.38x = 74,614,629,163,005,472 - Step 5: Solve for x
x = 74,614,629,163,005,472/313,539,005.38 - Step 6: Final answer
x = 237,975,587.99
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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.