Finding the Fourth Proportional to 403,079,884,044.30, 556,250,218,707.85 and 217,681,575,173.58
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Solution
The fourth proportional to 403,079,884,044.30, 556,250,218,707.85 and 217,681,575,173.58 is: 300,400,562,250.99
Step by Step Solution
- Step 1: Write the proportion equation
403,079,884,044.30 : 556,250,218,707.85 = 217,681,575,173.58 : x - Step 2: Convert to fraction form
403,079,884,044.30/556,250,218,707.85 = 217,681,575,173.58/x - Step 3: Cross multiply
403,079,884,044.30x = 556,250,218,707.85 × 217,681,575,173.58 - Step 4: Simplify right side
403,079,884,044.30x = 121,085,423,798,973,156,556,800 - Step 5: Solve for x
x = 121,085,423,798,973,156,556,800/403,079,884,044.30 - Step 6: Final answer
x = 300,400,562,250.99
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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.