Finding the Fourth Proportional to 81,411,803.87, 112,349,384.79 and 44,242,821.95
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Solution
The fourth proportional to 81,411,803.87, 112,349,384.79 and 44,242,821.95 is: 61,055,689.61
Step by Step Solution
- Step 1: Write the proportion equation
81,411,803.87 : 112,349,384.79 = 44,242,821.95 : x - Step 2: Convert to fraction form
81,411,803.87/112,349,384.79 = 44,242,821.95/x - Step 3: Cross multiply
81,411,803.87x = 112,349,384.79 × 44,242,821.95 - Step 4: Simplify right side
81,411,803.87x = 4,970,653,827,456,009 - Step 5: Solve for x
x = 4,970,653,827,456,009/81,411,803.87 - Step 6: Final answer
x = 61,055,689.61
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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.