Finding the Fourth Proportional to 932,403,799.62, 1,286,710,697.79 and 509,017,460.79
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Solution
The fourth proportional to 932,403,799.62, 1,286,710,697.79 and 509,017,460.79 is: 702,440,522.47
Step by Step Solution
- Step 1: Write the proportion equation
932,403,799.62 : 1,286,710,697.79 = 509,017,460.79 : x - Step 2: Convert to fraction form
932,403,799.62/1,286,710,697.79 = 509,017,460.79/x - Step 3: Cross multiply
932,403,799.62x = 1,286,710,697.79 × 509,017,460.79 - Step 4: Simplify right side
932,403,799.62x = 654,958,212,162,181,376 - Step 5: Solve for x
x = 654,958,212,162,181,376/932,403,799.62 - Step 6: Final answer
x = 702,440,522.47
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Double scale
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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.