Finding the Fourth Proportional to 298,909,557.87, 412,444,104.68 and 173,432,988.59
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Solution
The fourth proportional to 298,909,557.87, 412,444,104.68 and 173,432,988.59 is: 239,307,883.66
Step by Step Solution
- Step 1: Write the proportion equation
298,909,557.87 : 412,444,104.68 = 173,432,988.59 : x - Step 2: Convert to fraction form
298,909,557.87/412,444,104.68 = 173,432,988.59/x - Step 3: Cross multiply
298,909,557.87x = 412,444,104.68 × 173,432,988.59 - Step 4: Simplify right side
298,909,557.87x = 71,531,413,701,197,792 - Step 5: Solve for x
x = 71,531,413,701,197,792/298,909,557.87 - Step 6: Final answer
x = 239,307,883.66
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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.