Finding the Fourth Proportional to 153,752,715.84, 212,178,762.24 and 84,138,093.12
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Solution
The fourth proportional to 153,752,715.84, 212,178,762.24 and 84,138,093.12 is: 116,110,576.38
Step by Step Solution
- Step 1: Write the proportion equation
153,752,715.84 : 212,178,762.24 = 84,138,093.12 : x - Step 2: Convert to fraction form
153,752,715.84/212,178,762.24 = 84,138,093.12/x - Step 3: Cross multiply
153,752,715.84x = 212,178,762.24 × 84,138,093.12 - Step 4: Simplify right side
153,752,715.84x = 17,852,316,455,435,462 - Step 5: Solve for x
x = 17,852,316,455,435,462/153,752,715.84 - Step 6: Final answer
x = 116,110,576.38
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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.