Finding the Fourth Proportional to 85,421,851.99, 128,179,424.15 and 36,230,053.64
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Solution
The fourth proportional to 85,421,851.99, 128,179,424.15 and 36,230,053.64 is: 54,364,864.54
Step by Step Solution
- Step 1: Write the proportion equation
85,421,851.99 : 128,179,424.15 = 36,230,053.64 : x - Step 2: Convert to fraction form
85,421,851.99/128,179,424.15 = 36,230,053.64/x - Step 3: Cross multiply
85,421,851.99x = 128,179,424.15 × 36,230,053.64 - Step 4: Simplify right side
85,421,851.99x = 4,643,947,411,948,489 - Step 5: Solve for x
x = 4,643,947,411,948,489/85,421,851.99 - Step 6: Final answer
x = 54,364,864.54
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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.