Finding the Fourth Proportional to 291,935,514.98, 402,872,077.97 and 157,973,431.89
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Solution
The fourth proportional to 291,935,514.98, 402,872,077.97 and 157,973,431.89 is: 218,003,913.55
Step by Step Solution
- Step 1: Write the proportion equation
291,935,514.98 : 402,872,077.97 = 157,973,431.89 : x - Step 2: Convert to fraction form
291,935,514.98/402,872,077.97 = 157,973,431.89/x - Step 3: Cross multiply
291,935,514.98x = 402,872,077.97 × 157,973,431.89 - Step 4: Simplify right side
291,935,514.98x = 63,643,084,769,576,560 - Step 5: Solve for x
x = 63,643,084,769,576,560/291,935,514.98 - Step 6: Final answer
x = 218,003,913.55
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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.