Finding the Fourth Proportional to 985,465,062.72, 1,359,942,212.28 and 539,430,970.08
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Solution
The fourth proportional to 985,465,062.72, 1,359,942,212.28 and 539,430,970.08 is: 744,414,971.75
Step by Step Solution
- Step 1: Write the proportion equation
985,465,062.72 : 1,359,942,212.28 = 539,430,970.08 : x - Step 2: Convert to fraction form
985,465,062.72/1,359,942,212.28 = 539,430,970.08/x - Step 3: Cross multiply
985,465,062.72x = 1,359,942,212.28 × 539,430,970.08 - Step 4: Simplify right side
985,465,062.72x = 733,594,946,822,941,696 - Step 5: Solve for x
x = 733,594,946,822,941,696/985,465,062.72 - Step 6: Final answer
x = 744,414,971.75
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1.5x scale
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.