Finding the Fourth Proportional to 79,921,853.84, 110,292,156.96 and 43,252,424.84
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Solution
The fourth proportional to 79,921,853.84, 110,292,156.96 and 43,252,424.84 is: 59,688,345.55
Step by Step Solution
- Step 1: Write the proportion equation
79,921,853.84 : 110,292,156.96 = 43,252,424.84 : x - Step 2: Convert to fraction form
79,921,853.84/110,292,156.96 = 43,252,424.84/x - Step 3: Cross multiply
79,921,853.84x = 110,292,156.96 × 43,252,424.84 - Step 4: Simplify right side
79,921,853.84x = 4,770,403,229,353,883 - Step 5: Solve for x
x = 4,770,403,229,353,883/79,921,853.84 - Step 6: Final answer
x = 59,688,345.55
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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.