Finding the Fourth Proportional to 282,674,722.92, 390,085,523.68 and 157,224,220.28
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Solution
The fourth proportional to 282,674,722.92, 390,085,523.68 and 157,224,220.28 is: 216,966,312.62
Step by Step Solution
- Step 1: Write the proportion equation
282,674,722.92 : 390,085,523.68 = 157,224,220.28 : x - Step 2: Convert to fraction form
282,674,722.92/390,085,523.68 = 157,224,220.28/x - Step 3: Cross multiply
282,674,722.92x = 390,085,523.68 × 157,224,220.28 - Step 4: Simplify right side
282,674,722.92x = 61,330,892,302,516,816 - Step 5: Solve for x
x = 61,330,892,302,516,816/282,674,722.92 - Step 6: Final answer
x = 216,966,312.62
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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.