Finding the Fourth Proportional to 985,465,047.84, 1,359,942,191.82 and 539,430,955.08
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Solution
The fourth proportional to 985,465,047.84, 1,359,942,191.82 and 539,430,955.08 is: 744,414,951.09
Step by Step Solution
- Step 1: Write the proportion equation
985,465,047.84 : 1,359,942,191.82 = 539,430,955.08 : x - Step 2: Convert to fraction form
985,465,047.84/1,359,942,191.82 = 539,430,955.08/x - Step 3: Cross multiply
985,465,047.84x = 1,359,942,191.82 × 539,430,955.08 - Step 4: Simplify right side
985,465,047.84x = 733,594,915,387,051,136 - Step 5: Solve for x
x = 733,594,915,387,051,136/985,465,047.84 - Step 6: Final answer
x = 744,414,951.09
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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.