Finding the Fourth Proportional to 12,021,805,646.18, 16,583,199,119.43 and 7,497,830,521.68
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Solution
The fourth proportional to 12,021,805,646.18, 16,583,199,119.43 and 7,497,830,521.68 is: 10,342,707,257.48
Step by Step Solution
- Step 1: Write the proportion equation
12,021,805,646.18 : 16,583,199,119.43 = 7,497,830,521.68 : x - Step 2: Convert to fraction form
12,021,805,646.18/16,583,199,119.43 = 7,497,830,521.68/x - Step 3: Cross multiply
12,021,805,646.18x = 16,583,199,119.43 × 7,497,830,521.68 - Step 4: Simplify right side
12,021,805,646.18x = 124,338,016,504,759,156,736 - Step 5: Solve for x
x = 124,338,016,504,759,156,736/12,021,805,646.18 - Step 6: Final answer
x = 10,342,707,257.48
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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.