Finding the Fourth Proportional to 294,943,402.12, 405,929,819.10 and 216,502,710.52
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Solution
The fourth proportional to 294,943,402.12, 405,929,819.10 and 216,502,710.52 is: 297,972,104.09
Step by Step Solution
- Step 1: Write the proportion equation
294,943,402.12 : 405,929,819.10 = 216,502,710.52 : x - Step 2: Convert to fraction form
294,943,402.12/405,929,819.10 = 216,502,710.52/x - Step 3: Cross multiply
294,943,402.12x = 405,929,819.10 × 216,502,710.52 - Step 4: Simplify right side
294,943,402.12x = 87,884,906,116,043,280 - Step 5: Solve for x
x = 87,884,906,116,043,280/294,943,402.12 - Step 6: Final answer
x = 297,972,104.09
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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.