Finding the Fourth Proportional to 400,589,946.08, 551,529,313.75 and 312,370,740.08
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Solution
The fourth proportional to 400,589,946.08, 551,529,313.75 and 312,370,740.08 is: 430,069,754.86
Step by Step Solution
- Step 1: Write the proportion equation
400,589,946.08 : 551,529,313.75 = 312,370,740.08 : x - Step 2: Convert to fraction form
400,589,946.08/551,529,313.75 = 312,370,740.08/x - Step 3: Cross multiply
400,589,946.08x = 551,529,313.75 × 312,370,740.08 - Step 4: Simplify right side
400,589,946.08x = 172,281,619,908,363,424 - Step 5: Solve for x
x = 172,281,619,908,363,424/400,589,946.08 - Step 6: Final answer
x = 430,069,754.86
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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.