Finding the Fourth Proportional to 971,397,570.82, 1,340,528,648.04 and 525,360,931.03
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Solution
The fourth proportional to 971,397,570.82, 1,340,528,648.04 and 525,360,931.03 is: 724,998,084.99
Step by Step Solution
- Step 1: Write the proportion equation
971,397,570.82 : 1,340,528,648.04 = 525,360,931.03 : x - Step 2: Convert to fraction form
971,397,570.82/1,340,528,648.04 = 525,360,931.03/x - Step 3: Cross multiply
971,397,570.82x = 1,340,528,648.04 × 525,360,931.03 - Step 4: Simplify right side
971,397,570.82x = 704,261,378,606,681,472 - Step 5: Solve for x
x = 704,261,378,606,681,472/971,397,570.82 - Step 6: Final answer
x = 724,998,084.99
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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.