Finding the Fourth Proportional to 159,490,976.20, 239,348,438.70 and 68,679,737.80
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Solution
The fourth proportional to 159,490,976.20, 239,348,438.70 and 68,679,737.80 is: 103,067,824.93
Step by Step Solution
- Step 1: Write the proportion equation
159,490,976.20 : 239,348,438.70 = 68,679,737.80 : x - Step 2: Convert to fraction form
159,490,976.20/239,348,438.70 = 68,679,737.80/x - Step 3: Cross multiply
159,490,976.20x = 239,348,438.70 × 68,679,737.80 - Step 4: Simplify right side
159,490,976.20x = 16,438,388,012,755,372 - Step 5: Solve for x
x = 16,438,388,012,755,372/159,490,976.20 - Step 6: Final answer
x = 103,067,824.93
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.