Finding the Fourth Proportional to 343,518,868.49, 474,220,691.03 and 211,473,051.82
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Solution
The fourth proportional to 343,518,868.49, 474,220,691.03 and 211,473,051.82 is: 291,934,172.96
Step by Step Solution
- Step 1: Write the proportion equation
343,518,868.49 : 474,220,691.03 = 211,473,051.82 : x - Step 2: Convert to fraction form
343,518,868.49/474,220,691.03 = 211,473,051.82/x - Step 3: Cross multiply
343,518,868.49x = 474,220,691.03 × 211,473,051.82 - Step 4: Simplify right side
343,518,868.49x = 100,284,896,767,646,528 - Step 5: Solve for x
x = 100,284,896,767,646,528/343,518,868.49 - Step 6: Final answer
x = 291,934,172.96
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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.