Finding the Fourth Proportional to 489,387,959,125.70, 734,081,938,688.55 and 489,387,959,125.70
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Solution
The fourth proportional to 489,387,959,125.70, 734,081,938,688.55 and 489,387,959,125.70 is: 734,081,938,688.55
Step by Step Solution
- Step 1: Write the proportion equation
489,387,959,125.70 : 734,081,938,688.55 = 489,387,959,125.70 : x - Step 2: Convert to fraction form
489,387,959,125.70/734,081,938,688.55 = 489,387,959,125.70/x - Step 3: Cross multiply
489,387,959,125.70x = 734,081,938,688.55 × 489,387,959,125.70 - Step 4: Simplify right side
489,387,959,125.70x = 359,250,861,805,826,769,682,432 - Step 5: Solve for x
x = 359,250,861,805,826,769,682,432/489,387,959,125.70 - Step 6: Final answer
x = 734,081,938,688.55
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1.5x scale
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.