Finding the Fourth Proportional to 807,821,963.48, 1,114,746,265.60 and 468,704,168.12
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Solution
The fourth proportional to 807,821,963.48, 1,114,746,265.60 and 468,704,168.12 is: 646,783,876.53
Step by Step Solution
- Step 1: Write the proportion equation
807,821,963.48 : 1,114,746,265.60 = 468,704,168.12 : x - Step 2: Convert to fraction form
807,821,963.48/1,114,746,265.60 = 468,704,168.12/x - Step 3: Cross multiply
807,821,963.48x = 1,114,746,265.60 × 468,704,168.12 - Step 4: Simplify right side
807,821,963.48x = 522,486,221,082,924,544 - Step 5: Solve for x
x = 522,486,221,082,924,544/807,821,963.48 - Step 6: Final answer
x = 646,783,876.53
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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.