Finding the Fourth Proportional to 157,464,195.30, 236,196,292.95 and 128,742,761.70
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Solution
The fourth proportional to 157,464,195.30, 236,196,292.95 and 128,742,761.70 is: 193,114,142.55
Step by Step Solution
- Step 1: Write the proportion equation
157,464,195.30 : 236,196,292.95 = 128,742,761.70 : x - Step 2: Convert to fraction form
157,464,195.30/236,196,292.95 = 128,742,761.70/x - Step 3: Cross multiply
157,464,195.30x = 236,196,292.95 × 128,742,761.70 - Step 4: Simplify right side
157,464,195.30x = 30,408,563,057,685,240 - Step 5: Solve for x
x = 30,408,563,057,685,240/157,464,195.30 - Step 6: Final answer
x = 193,114,142.55
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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.