Finding the Fourth Proportional to 198,537,657.73, 297,697,139.62 and 81,926,507.14
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Solution
The fourth proportional to 198,537,657.73, 297,697,139.62 and 81,926,507.14 is: 122,844,638.71
Step by Step Solution
- Step 1: Write the proportion equation
198,537,657.73 : 297,697,139.62 = 81,926,507.14 : x - Step 2: Convert to fraction form
198,537,657.73/297,697,139.62 = 81,926,507.14/x - Step 3: Cross multiply
198,537,657.73x = 297,697,139.62 × 81,926,507.14 - Step 4: Simplify right side
198,537,657.73x = 24,389,286,834,635,508 - Step 5: Solve for x
x = 24,389,286,834,635,508/198,537,657.73 - Step 6: Final answer
x = 122,844,638.71
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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.