Finding the Fourth Proportional to 377,602,122.36, 521,099,839.98 and 210,349,637.40
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Solution
The fourth proportional to 377,602,122.36, 521,099,839.98 and 210,349,637.40 is: 290,287,463.70
Step by Step Solution
- Step 1: Write the proportion equation
377,602,122.36 : 521,099,839.98 = 210,349,637.40 : x - Step 2: Convert to fraction form
377,602,122.36/521,099,839.98 = 210,349,637.40/x - Step 3: Cross multiply
377,602,122.36x = 521,099,839.98 × 210,349,637.40 - Step 4: Simplify right side
377,602,122.36x = 109,613,162,388,991,024 - Step 5: Solve for x
x = 109,613,162,388,991,024/377,602,122.36 - Step 6: Final answer
x = 290,287,463.70
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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.