Finding the Fourth Proportional to 79,921,850.36, 110,292,152.15 and 43,252,421.36
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Solution
The fourth proportional to 79,921,850.36, 110,292,152.15 and 43,252,421.36 is: 59,688,340.75
Step by Step Solution
- Step 1: Write the proportion equation
79,921,850.36 : 110,292,152.15 = 43,252,421.36 : x - Step 2: Convert to fraction form
79,921,850.36/110,292,152.15 = 43,252,421.36/x - Step 3: Cross multiply
79,921,850.36x = 110,292,152.15 × 43,252,421.36 - Step 4: Simplify right side
79,921,850.36x = 4,770,402,637,049,700 - Step 5: Solve for x
x = 4,770,402,637,049,700/79,921,850.36 - Step 6: Final answer
x = 59,688,340.75
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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.