Finding the Fourth Proportional to 2,638,514,921.48, 3,641,136,507.66 and 1,432,845,628.86
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Solution
The fourth proportional to 2,638,514,921.48, 3,641,136,507.66 and 1,432,845,628.86 is: 1,977,319,319.52
Step by Step Solution
- Step 1: Write the proportion equation
2,638,514,921.48 : 3,641,136,507.66 = 1,432,845,628.86 : x - Step 2: Convert to fraction form
2,638,514,921.48/3,641,136,507.66 = 1,432,845,628.86/x - Step 3: Cross multiply
2,638,514,921.48x = 3,641,136,507.66 × 1,432,845,628.86 - Step 4: Simplify right side
2,638,514,921.48x = 5,217,186,529,083,196,416 - Step 5: Solve for x
x = 5,217,186,529,083,196,416/2,638,514,921.48 - Step 6: Final answer
x = 1,977,319,319.52
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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.