Finding the Fourth Proportional to 153,658,455.98, 212,053,717.94 and 84,043,838.91
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Solution
The fourth proportional to 153,658,455.98, 212,053,717.94 and 84,043,838.91 is: 115,983,259.09
Step by Step Solution
- Step 1: Write the proportion equation
153,658,455.98 : 212,053,717.94 = 84,043,838.91 : x - Step 2: Convert to fraction form
153,658,455.98/212,053,717.94 = 84,043,838.91/x - Step 3: Cross multiply
153,658,455.98x = 212,053,717.94 × 84,043,838.91 - Step 4: Simplify right side
153,658,455.98x = 17,821,808,509,998,116 - Step 5: Solve for x
x = 17,821,808,509,998,116/153,658,455.98 - Step 6: Final answer
x = 115,983,259.09
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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.