Finding the Fourth Proportional to 197,506,031.09, 272,454,986.17 and 122,128,260.33
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Solution
The fourth proportional to 197,506,031.09, 272,454,986.17 and 122,128,260.33 is: 168,473,100.77
Step by Step Solution
- Step 1: Write the proportion equation
197,506,031.09 : 272,454,986.17 = 122,128,260.33 : x - Step 2: Convert to fraction form
197,506,031.09/272,454,986.17 = 122,128,260.33/x - Step 3: Cross multiply
197,506,031.09x = 272,454,986.17 × 122,128,260.33 - Step 4: Simplify right side
197,506,031.09x = 33,274,453,477,535,772 - Step 5: Solve for x
x = 33,274,453,477,535,772/197,506,031.09 - Step 6: Final answer
x = 168,473,100.77
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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.