Finding the Fourth Proportional to 83,512,497.78, 115,247,011.05 and 46,348,388.82
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Solution
The fourth proportional to 83,512,497.78, 115,247,011.05 and 46,348,388.82 is: 63,960,645.66
Step by Step Solution
- Step 1: Write the proportion equation
83,512,497.78 : 115,247,011.05 = 46,348,388.82 : x - Step 2: Convert to fraction form
83,512,497.78/115,247,011.05 = 46,348,388.82/x - Step 3: Cross multiply
83,512,497.78x = 115,247,011.05 × 46,348,388.82 - Step 4: Simplify right side
83,512,497.78x = 5,341,513,278,488,236 - Step 5: Solve for x
x = 5,341,513,278,488,236/83,512,497.78 - Step 6: Final answer
x = 63,960,645.66
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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.