Finding the Fourth Proportional to 208,007,545.68, 287,050,154.04 and 115,187,941.44
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Solution
The fourth proportional to 208,007,545.68, 287,050,154.04 and 115,187,941.44 is: 158,959,215.76
Step by Step Solution
- Step 1: Write the proportion equation
208,007,545.68 : 287,050,154.04 = 115,187,941.44 : x - Step 2: Convert to fraction form
208,007,545.68/287,050,154.04 = 115,187,941.44/x - Step 3: Cross multiply
208,007,545.68x = 287,050,154.04 × 115,187,941.44 - Step 4: Simplify right side
208,007,545.68x = 33,064,716,333,902,500 - Step 5: Solve for x
x = 33,064,716,333,902,500/208,007,545.68 - Step 6: Final answer
x = 158,959,215.76
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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.