Finding the Fourth Proportional to 943,268,785.90, 1,301,657,805.48 and 519,881,164.12
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Solution
The fourth proportional to 943,268,785.90, 1,301,657,805.48 and 519,881,164.12 is: 717,406,729.99
Step by Step Solution
- Step 1: Write the proportion equation
943,268,785.90 : 1,301,657,805.48 = 519,881,164.12 : x - Step 2: Convert to fraction form
943,268,785.90/1,301,657,805.48 = 519,881,164.12/x - Step 3: Cross multiply
943,268,785.90x = 1,301,657,805.48 × 519,881,164.12 - Step 4: Simplify right side
943,268,785.90x = 676,707,375,198,826,880 - Step 5: Solve for x
x = 676,707,375,198,826,880/943,268,785.90 - Step 6: Final answer
x = 717,406,729.99
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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.