Finding the Fourth Proportional to 674,919,257.93, 931,389,943.16 and 377,566,465.79
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Solution
The fourth proportional to 674,919,257.93, 931,389,943.16 and 377,566,465.79 is: 521,042,487.65
Step by Step Solution
- Step 1: Write the proportion equation
674,919,257.93 : 931,389,943.16 = 377,566,465.79 : x - Step 2: Convert to fraction form
674,919,257.93/931,389,943.16 = 377,566,465.79/x - Step 3: Cross multiply
674,919,257.93x = 931,389,943.16 × 377,566,465.79 - Step 4: Simplify right side
674,919,257.93x = 351,661,609,111,710,848 - Step 5: Solve for x
x = 351,661,609,111,710,848/674,919,257.93 - Step 6: Final answer
x = 521,042,487.65
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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.