Finding the Fourth Proportional to 291,353,728.60, 402,056,181.21 and 159,199,261.84
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Solution
The fourth proportional to 291,353,728.60, 402,056,181.21 and 159,199,261.84 is: 219,688,443.92
Step by Step Solution
- Step 1: Write the proportion equation
291,353,728.60 : 402,056,181.21 = 159,199,261.84 : x - Step 2: Convert to fraction form
291,353,728.60/402,056,181.21 = 159,199,261.84/x - Step 3: Cross multiply
291,353,728.60x = 402,056,181.21 × 159,199,261.84 - Step 4: Simplify right side
291,353,728.60x = 64,007,047,266,841,280 - Step 5: Solve for x
x = 64,007,047,266,841,280/291,353,728.60 - Step 6: Final answer
x = 219,688,443.92
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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.