Finding the Fourth Proportional to 395,403,044.71, 545,656,193.58 and 219,190,593.55
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Solution
The fourth proportional to 395,403,044.71, 545,656,193.58 and 219,190,593.55 is: 302,483,014.60
Step by Step Solution
- Step 1: Write the proportion equation
395,403,044.71 : 545,656,193.58 = 219,190,593.55 : x - Step 2: Convert to fraction form
395,403,044.71/545,656,193.58 = 219,190,593.55/x - Step 3: Cross multiply
395,403,044.71x = 545,656,193.58 × 219,190,593.55 - Step 4: Simplify right side
395,403,044.71x = 119,602,704,945,033,920 - Step 5: Solve for x
x = 119,602,704,945,033,920/395,403,044.71 - Step 6: Final answer
x = 302,483,014.60
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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.