Finding the Fourth Proportional to 112,623,972.68, 155,421,082.32 and 61,115,748.68
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Solution
The fourth proportional to 112,623,972.68, 155,421,082.32 and 61,115,748.68 is: 84,339,733.19
Step by Step Solution
- Step 1: Write the proportion equation
112,623,972.68 : 155,421,082.32 = 61,115,748.68 : x - Step 2: Convert to fraction form
112,623,972.68/155,421,082.32 = 61,115,748.68/x - Step 3: Cross multiply
112,623,972.68x = 155,421,082.32 × 61,115,748.68 - Step 4: Simplify right side
112,623,972.68x = 9,498,675,806,642,710 - Step 5: Solve for x
x = 9,498,675,806,642,710/112,623,972.68 - Step 6: Final answer
x = 84,339,733.19
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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.