Finding the Fourth Proportional to 215,013,085.32, 296,743,248.24 and 122,207,543.76
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Solution
The fourth proportional to 215,013,085.32, 296,743,248.24 and 122,207,543.76 is: 168,660,727.98
Step by Step Solution
- Step 1: Write the proportion equation
215,013,085.32 : 296,743,248.24 = 122,207,543.76 : x - Step 2: Convert to fraction form
215,013,085.32/296,743,248.24 = 122,207,543.76/x - Step 3: Cross multiply
215,013,085.32x = 296,743,248.24 × 122,207,543.76 - Step 4: Simplify right side
215,013,085.32x = 36,264,263,494,774,344 - Step 5: Solve for x
x = 36,264,263,494,774,344/215,013,085.32 - Step 6: Final answer
x = 168,660,727.98
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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.