Finding the Fourth Proportional to 52,176,331.68, 77,913,138.24 and 42,610,685.28
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Solution
The fourth proportional to 52,176,331.68, 77,913,138.24 and 42,610,685.28 is: 63,629,084.41
Step by Step Solution
- Step 1: Write the proportion equation
52,176,331.68 : 77,913,138.24 = 42,610,685.28 : x - Step 2: Convert to fraction form
52,176,331.68/77,913,138.24 = 42,610,685.28/x - Step 3: Cross multiply
52,176,331.68x = 77,913,138.24 × 42,610,685.28 - Step 4: Simplify right side
52,176,331.68x = 3,319,932,212,721,773 - Step 5: Solve for x
x = 3,319,932,212,721,773/52,176,331.68 - Step 6: Final answer
x = 63,629,084.41
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.