Finding the Fourth Proportional to 12,021,805,691.21, 16,583,199,181.41 and 7,497,830,566.60
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Solution
The fourth proportional to 12,021,805,691.21, 16,583,199,181.41 and 7,497,830,566.60 is: 10,342,707,319.35
Step by Step Solution
- Step 1: Write the proportion equation
12,021,805,691.21 : 16,583,199,181.41 = 7,497,830,566.60 : x - Step 2: Convert to fraction form
12,021,805,691.21/16,583,199,181.41 = 7,497,830,566.60/x - Step 3: Cross multiply
12,021,805,691.21x = 16,583,199,181.41 × 7,497,830,566.60 - Step 4: Simplify right side
12,021,805,691.21x = 124,338,017,714,309,087,232 - Step 5: Solve for x
x = 124,338,017,714,309,087,232/12,021,805,691.21 - Step 6: Final answer
x = 10,342,707,319.35
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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.