Finding the Fourth Proportional to 291,334,684.88, 402,037,173.08 and 159,172,843.62
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Solution
The fourth proportional to 291,334,684.88, 402,037,173.08 and 159,172,843.62 is: 219,655,960.66
Step by Step Solution
- Step 1: Write the proportion equation
291,334,684.88 : 402,037,173.08 = 159,172,843.62 : x - Step 2: Convert to fraction form
291,334,684.88/402,037,173.08 = 159,172,843.62/x - Step 3: Cross multiply
291,334,684.88x = 402,037,173.08 × 159,172,843.62 - Step 4: Simplify right side
291,334,684.88x = 63,993,400,080,089,712 - Step 5: Solve for x
x = 63,993,400,080,089,712/291,334,684.88 - Step 6: Final answer
x = 219,655,960.66
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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.