Finding the Fourth Proportional to 121,663,753.74, 168,118,690.86 and 88,566,542.42
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Solution
The fourth proportional to 121,663,753.74, 168,118,690.86 and 88,566,542.42 is: 122,383,953.37
Step by Step Solution
- Step 1: Write the proportion equation
121,663,753.74 : 168,118,690.86 = 88,566,542.42 : x - Step 2: Convert to fraction form
121,663,753.74/168,118,690.86 = 88,566,542.42/x - Step 3: Cross multiply
121,663,753.74x = 168,118,690.86 × 88,566,542.42 - Step 4: Simplify right side
121,663,753.74x = 14,889,691,164,806,466 - Step 5: Solve for x
x = 14,889,691,164,806,466/121,663,753.74 - Step 6: Final answer
x = 122,383,953.37
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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.