Finding the Fourth Proportional to 626,228,932.17, 864,346,436.87 and 358,459,986.63
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Solution
The fourth proportional to 626,228,932.17, 864,346,436.87 and 358,459,986.63 is: 494,760,935.32
Step by Step Solution
- Step 1: Write the proportion equation
626,228,932.17 : 864,346,436.87 = 358,459,986.63 : x - Step 2: Convert to fraction form
626,228,932.17/864,346,436.87 = 358,459,986.63/x - Step 3: Cross multiply
626,228,932.17x = 864,346,436.87 × 358,459,986.63 - Step 4: Simplify right side
626,228,932.17x = 309,833,612,202,316,032 - Step 5: Solve for x
x = 309,833,612,202,316,032/626,228,932.17 - Step 6: Final answer
x = 494,760,935.32
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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.