Finding the Fourth Proportional to 268,775,897.70, 403,238,496.15 and 115,495,385.70
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Solution
The fourth proportional to 268,775,897.70, 403,238,496.15 and 115,495,385.70 is: 173,275,156.14
Step by Step Solution
- Step 1: Write the proportion equation
268,775,897.70 : 403,238,496.15 = 115,495,385.70 : x - Step 2: Convert to fraction form
268,775,897.70/403,238,496.15 = 115,495,385.70/x - Step 3: Cross multiply
268,775,897.70x = 403,238,496.15 × 115,495,385.70 - Step 4: Simplify right side
268,775,897.70x = 46,572,185,641,932,216 - Step 5: Solve for x
x = 46,572,185,641,932,216/268,775,897.70 - Step 6: Final answer
x = 173,275,156.14
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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.