Finding the Fourth Proportional to 287,961,746.28, 397,398,486.94 and 162,518,324.06
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Solution
The fourth proportional to 287,961,746.28, 397,398,486.94 and 162,518,324.06 is: 224,281,651.70
Step by Step Solution
- Step 1: Write the proportion equation
287,961,746.28 : 397,398,486.94 = 162,518,324.06 : x - Step 2: Convert to fraction form
287,961,746.28/397,398,486.94 = 162,518,324.06/x - Step 3: Cross multiply
287,961,746.28x = 397,398,486.94 × 162,518,324.06 - Step 4: Simplify right side
287,961,746.28x = 64,584,536,081,468,600 - Step 5: Solve for x
x = 64,584,536,081,468,600/287,961,746.28 - Step 6: Final answer
x = 224,281,651.70
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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.