Finding the Fourth Proportional to 42,901,841.17, 64,266,599.53 and 19,840,451.05
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Solution
The fourth proportional to 42,901,841.17, 64,266,599.53 and 19,840,451.05 is: 29,720,829.86
Step by Step Solution
- Step 1: Write the proportion equation
42,901,841.17 : 64,266,599.53 = 19,840,451.05 : x - Step 2: Convert to fraction form
42,901,841.17/64,266,599.53 = 19,840,451.05/x - Step 3: Cross multiply
42,901,841.17x = 64,266,599.53 × 19,840,451.05 - Step 4: Simplify right side
42,901,841.17x = 1,275,078,322,124,918 - Step 5: Solve for x
x = 1,275,078,322,124,918/42,901,841.17 - Step 6: Final answer
x = 29,720,829.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.