Finding the Fourth Proportional to 187,174,929.14, 280,787,943.66 and 77,974,562.68
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Solution
The fourth proportional to 187,174,929.14, 280,787,943.66 and 77,974,562.68 is: 116,972,487.79
Step by Step Solution
- Step 1: Write the proportion equation
187,174,929.14 : 280,787,943.66 = 77,974,562.68 : x - Step 2: Convert to fraction form
187,174,929.14/280,787,943.66 = 77,974,562.68/x - Step 3: Cross multiply
187,174,929.14x = 280,787,943.66 × 77,974,562.68 - Step 4: Simplify right side
187,174,929.14x = 21,894,317,112,704,984 - Step 5: Solve for x
x = 21,894,317,112,704,984/187,174,929.14 - Step 6: Final answer
x = 116,972,487.79
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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.