Finding the Fourth Proportional to 72,901,803.31, 109,352,810.21 and 29,771,006.68
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Solution
The fourth proportional to 72,901,803.31, 109,352,810.21 and 29,771,006.68 is: 44,656,553.00
Step by Step Solution
- Step 1: Write the proportion equation
72,901,803.31 : 109,352,810.21 = 29,771,006.68 : x - Step 2: Convert to fraction form
72,901,803.31/109,352,810.21 = 29,771,006.68/x - Step 3: Cross multiply
72,901,803.31x = 109,352,810.21 × 29,771,006.68 - Step 4: Simplify right side
72,901,803.31x = 3,255,543,243,208,712.50 - Step 5: Solve for x
x = 3,255,543,243,208,712.50/72,901,803.31 - Step 6: Final answer
x = 44,656,553.00
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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.