Finding the Fourth Proportional to 147,512,648.70, 221,268,973.05 and 79,488,200.70
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Solution
The fourth proportional to 147,512,648.70, 221,268,973.05 and 79,488,200.70 is: 119,232,301.05
Step by Step Solution
- Step 1: Write the proportion equation
147,512,648.70 : 221,268,973.05 = 79,488,200.70 : x - Step 2: Convert to fraction form
147,512,648.70/221,268,973.05 = 79,488,200.70/x - Step 3: Cross multiply
147,512,648.70x = 221,268,973.05 × 79,488,200.70 - Step 4: Simplify right side
147,512,648.70x = 17,588,272,538,481,292 - Step 5: Solve for x
x = 17,588,272,538,481,292/147,512,648.70 - Step 6: Final answer
x = 119,232,301.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.