Finding the Fourth Proportional to 555,146,042.08, 766,106,101.20 and 307,631,529.76
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Solution
The fourth proportional to 555,146,042.08, 766,106,101.20 and 307,631,529.76 is: 424,534,039.71
Step by Step Solution
- Step 1: Write the proportion equation
555,146,042.08 : 766,106,101.20 = 307,631,529.76 : x - Step 2: Convert to fraction form
555,146,042.08/766,106,101.20 = 307,631,529.76/x - Step 3: Cross multiply
555,146,042.08x = 766,106,101.20 × 307,631,529.76 - Step 4: Simplify right side
555,146,042.08x = 235,678,391,870,625,376 - Step 5: Solve for x
x = 235,678,391,870,625,376/555,146,042.08 - Step 6: Final answer
x = 424,534,039.71
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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.