Finding the Fourth Proportional to 86,154,345, 129,232,642.86 and 28,646,616.24
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Solution
The fourth proportional to 86,154,345, 129,232,642.86 and 28,646,616.24 is: 42,970,298.55
Step by Step Solution
- Step 1: Write the proportion equation
86,154,345 : 129,232,642.86 = 28,646,616.24 : x - Step 2: Convert to fraction form
86,154,345/129,232,642.86 = 28,646,616.24/x - Step 3: Cross multiply
86,154,345x = 129,232,642.86 × 28,646,616.24 - Step 4: Simplify right side
86,154,345x = 3,702,077,925,691,396 - Step 5: Solve for x
x = 3,702,077,925,691,396/86,154,345 - Step 6: Final answer
x = 42,970,298.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.