Finding the Fourth Proportional to 153,660,933.91, 212,057,138.19 and 84,046,312.54
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Solution
The fourth proportional to 153,660,933.91, 212,057,138.19 and 84,046,312.54 is: 115,986,673.12
Step by Step Solution
- Step 1: Write the proportion equation
153,660,933.91 : 212,057,138.19 = 84,046,312.54 : x - Step 2: Convert to fraction form
153,660,933.91/212,057,138.19 = 84,046,312.54/x - Step 3: Cross multiply
153,660,933.91x = 212,057,138.19 × 84,046,312.54 - Step 4: Simplify right side
153,660,933.91x = 17,822,620,512,654,712 - Step 5: Solve for x
x = 17,822,620,512,654,712/153,660,933.91 - Step 6: Final answer
x = 115,986,673.12
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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.