Finding the Fourth Proportional to 101,697,876.68, 140,344,666.62 and 55,288,307.84
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Solution
The fourth proportional to 101,697,876.68, 140,344,666.62 and 55,288,307.84 is: 76,298,732.92
Step by Step Solution
- Step 1: Write the proportion equation
101,697,876.68 : 140,344,666.62 = 55,288,307.84 : x - Step 2: Convert to fraction form
101,697,876.68/140,344,666.62 = 55,288,307.84/x - Step 3: Cross multiply
101,697,876.68x = 140,344,666.62 × 55,288,307.84 - Step 4: Simplify right side
101,697,876.68x = 7,759,419,131,788,733 - Step 5: Solve for x
x = 7,759,419,131,788,733/101,697,876.68 - Step 6: Final answer
x = 76,298,732.92
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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.