Finding the Fourth Proportional to 15,116,752,138.60, 22,675,128,207.90 and 8,902,718,813.80
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Solution
The fourth proportional to 15,116,752,138.60, 22,675,128,207.90 and 8,902,718,813.80 is: 13,354,078,220.70
Step by Step Solution
- Step 1: Write the proportion equation
15,116,752,138.60 : 22,675,128,207.90 = 8,902,718,813.80 : x - Step 2: Convert to fraction form
15,116,752,138.60/22,675,128,207.90 = 8,902,718,813.80/x - Step 3: Cross multiply
15,116,752,138.60x = 22,675,128,207.90 × 8,902,718,813.80 - Step 4: Simplify right side
15,116,752,138.60x = 201,870,290,501,798,395,904 - Step 5: Solve for x
x = 201,870,290,501,798,395,904/15,116,752,138.60 - Step 6: Final answer
x = 13,354,078,220.70
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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.