Finding the Fourth Proportional to 664,829,628.88, 997,294,569.36 and 198,454,211.68
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Solution
The fourth proportional to 664,829,628.88, 997,294,569.36 and 198,454,211.68 is: 297,696,280.34
Step by Step Solution
- Step 1: Write the proportion equation
664,829,628.88 : 997,294,569.36 = 198,454,211.68 : x - Step 2: Convert to fraction form
664,829,628.88/997,294,569.36 = 198,454,211.68/x - Step 3: Cross multiply
664,829,628.88x = 997,294,569.36 × 198,454,211.68 - Step 4: Simplify right side
664,829,628.88x = 197,917,307,575,083,904 - Step 5: Solve for x
x = 197,917,307,575,083,904/664,829,628.88 - Step 6: Final answer
x = 297,696,280.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.