Finding the Fourth Proportional to 754,281,230.68, 1,040,900,577.78 and 419,748,023.08
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Solution
The fourth proportional to 754,281,230.68, 1,040,900,577.78 and 419,748,023.08 is: 579,248,086.75
Step by Step Solution
- Step 1: Write the proportion equation
754,281,230.68 : 1,040,900,577.78 = 419,748,023.08 : x - Step 2: Convert to fraction form
754,281,230.68/1,040,900,577.78 = 419,748,023.08/x - Step 3: Cross multiply
754,281,230.68x = 1,040,900,577.78 × 419,748,023.08 - Step 4: Simplify right side
754,281,230.68x = 436,915,959,745,984,768 - Step 5: Solve for x
x = 436,915,959,745,984,768/754,281,230.68 - Step 6: Final answer
x = 579,248,086.75
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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.