Finding the Fourth Proportional to 521,737,937.19, 719,994,109.23 and 286,786,099.62
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Solution
The fourth proportional to 521,737,937.19, 719,994,109.23 and 286,786,099.62 is: 395,762,484.61
Step by Step Solution
- Step 1: Write the proportion equation
521,737,937.19 : 719,994,109.23 = 286,786,099.62 : x - Step 2: Convert to fraction form
521,737,937.19/719,994,109.23 = 286,786,099.62/x - Step 3: Cross multiply
521,737,937.19x = 719,994,109.23 × 286,786,099.62 - Step 4: Simplify right side
521,737,937.19x = 206,484,302,335,447,936 - Step 5: Solve for x
x = 206,484,302,335,447,936/521,737,937.19 - Step 6: Final answer
x = 395,762,484.61
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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.