Finding the Fourth Proportional to 320,616,329.48, 442,451,392.18 and 173,938,613.48
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Solution
The fourth proportional to 320,616,329.48, 442,451,392.18 and 173,938,613.48 is: 240,035,751.81
Step by Step Solution
- Step 1: Write the proportion equation
320,616,329.48 : 442,451,392.18 = 173,938,613.48 : x - Step 2: Convert to fraction form
320,616,329.48/442,451,392.18 = 173,938,613.48/x - Step 3: Cross multiply
320,616,329.48x = 442,451,392.18 × 173,938,613.48 - Step 4: Simplify right side
320,616,329.48x = 76,959,381,688,084,912 - Step 5: Solve for x
x = 76,959,381,688,084,912/320,616,329.48 - Step 6: Final answer
x = 240,035,751.81
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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.