Finding the Fourth Proportional to 427,708,509.72, 590,136,578.01 and 242,069,519.94
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Solution
The fourth proportional to 427,708,509.72, 590,136,578.01 and 242,069,519.94 is: 333,998,681.09
Step by Step Solution
- Step 1: Write the proportion equation
427,708,509.72 : 590,136,578.01 = 242,069,519.94 : x - Step 2: Convert to fraction form
427,708,509.72/590,136,578.01 = 242,069,519.94/x - Step 3: Cross multiply
427,708,509.72x = 590,136,578.01 × 242,069,519.94 - Step 4: Simplify right side
427,708,509.72x = 142,854,078,137,915,056 - Step 5: Solve for x
x = 142,854,078,137,915,056/427,708,509.72 - Step 6: Final answer
x = 333,998,681.09
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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.