Finding the Fourth Proportional to 79,921,853.11, 110,292,155.95 and 43,252,424.11
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Solution
The fourth proportional to 79,921,853.11, 110,292,155.95 and 43,252,424.11 is: 59,688,344.54
Step by Step Solution
- Step 1: Write the proportion equation
79,921,853.11 : 110,292,155.95 = 43,252,424.11 : x - Step 2: Convert to fraction form
79,921,853.11/110,292,155.95 = 43,252,424.11/x - Step 3: Cross multiply
79,921,853.11x = 110,292,155.95 × 43,252,424.11 - Step 4: Simplify right side
79,921,853.11x = 4,770,403,104,604,199 - Step 5: Solve for x
x = 4,770,403,104,604,199/79,921,853.11 - Step 6: Final answer
x = 59,688,344.54
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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.