Finding the Fourth Proportional to 612,221,415,275.30, 918,332,122,912.95 and 572,549,557,201.70
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Solution
The fourth proportional to 612,221,415,275.30, 918,332,122,912.95 and 572,549,557,201.70 is: 858,824,335,802.55
Step by Step Solution
- Step 1: Write the proportion equation
612,221,415,275.30 : 918,332,122,912.95 = 572,549,557,201.70 : x - Step 2: Convert to fraction form
612,221,415,275.30/918,332,122,912.95 = 572,549,557,201.70/x - Step 3: Cross multiply
612,221,415,275.30x = 918,332,122,912.95 × 572,549,557,201.70 - Step 4: Simplify right side
612,221,415,275.30x = 525,790,650,337,906,606,997,504 - Step 5: Solve for x
x = 525,790,650,337,906,606,997,504/612,221,415,275.30 - Step 6: Final answer
x = 858,824,335,802.55
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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.