Finding the Fourth Proportional to 156,927,704.70, 216,590,214.15 and 103,910,901.42
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Solution
The fourth proportional to 156,927,704.70, 216,590,214.15 and 103,910,901.42 is: 143,416,896.55
Step by Step Solution
- Step 1: Write the proportion equation
156,927,704.70 : 216,590,214.15 = 103,910,901.42 : x - Step 2: Convert to fraction form
156,927,704.70/216,590,214.15 = 103,910,901.42/x - Step 3: Cross multiply
156,927,704.70x = 216,590,214.15 × 103,910,901.42 - Step 4: Simplify right side
156,927,704.70x = 22,506,084,391,077,340 - Step 5: Solve for x
x = 22,506,084,391,077,340/156,927,704.70 - Step 6: Final answer
x = 143,416,896.55
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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.