Finding the Fourth Proportional to 506,239,531.12, 698,637,678.06 and 283,207,907.92
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Solution
The fourth proportional to 506,239,531.12, 698,637,678.06 and 283,207,907.92 is: 390,842,087.66
Step by Step Solution
- Step 1: Write the proportion equation
506,239,531.12 : 698,637,678.06 = 283,207,907.92 : x - Step 2: Convert to fraction form
506,239,531.12/698,637,678.06 = 283,207,907.92/x - Step 3: Cross multiply
506,239,531.12x = 698,637,678.06 × 283,207,907.92 - Step 4: Simplify right side
506,239,531.12x = 197,859,715,197,459,072 - Step 5: Solve for x
x = 197,859,715,197,459,072/506,239,531.12 - Step 6: Final answer
x = 390,842,087.66
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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.