Finding the Fourth Proportional to 117,792,138.10, 176,688,207.15 and 66,773,802.10
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Solution
The fourth proportional to 117,792,138.10, 176,688,207.15 and 66,773,802.10 is: 100,160,703.15
Step by Step Solution
- Step 1: Write the proportion equation
117,792,138.10 : 176,688,207.15 = 66,773,802.10 : x - Step 2: Convert to fraction form
117,792,138.10/176,688,207.15 = 66,773,802.10/x - Step 3: Cross multiply
117,792,138.10x = 176,688,207.15 × 66,773,802.10 - Step 4: Simplify right side
117,792,138.10x = 11,798,143,377,637,906 - Step 5: Solve for x
x = 11,798,143,377,637,906/117,792,138.10 - Step 6: Final answer
x = 100,160,703.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.