Finding the Fourth Proportional to 78,536,817.99, 117,646,010.64 and 36,412,341.30
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Solution
The fourth proportional to 78,536,817.99, 117,646,010.64 and 36,412,341.30 is: 54,544,693.83
Step by Step Solution
- Step 1: Write the proportion equation
78,536,817.99 : 117,646,010.64 = 36,412,341.30 : x - Step 2: Convert to fraction form
78,536,817.99/117,646,010.64 = 36,412,341.30/x - Step 3: Cross multiply
78,536,817.99x = 117,646,010.64 × 36,412,341.30 - Step 4: Simplify right side
78,536,817.99x = 4,283,766,692,007,111 - Step 5: Solve for x
x = 4,283,766,692,007,111/78,536,817.99 - Step 6: Final answer
x = 54,544,693.83
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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.