Finding the Fourth Proportional to 431,869,409.94, 647,822,551.05 and 169,610,798.10
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Solution
The fourth proportional to 431,869,409.94, 647,822,551.05 and 169,610,798.10 is: 254,423,437.69
Step by Step Solution
- Step 1: Write the proportion equation
431,869,409.94 : 647,822,551.05 = 169,610,798.10 : x - Step 2: Convert to fraction form
431,869,409.94/647,822,551.05 = 169,610,798.10/x - Step 3: Cross multiply
431,869,409.94x = 647,822,551.05 × 169,610,798.10 - Step 4: Simplify right side
431,869,409.94x = 109,877,699,910,768,480 - Step 5: Solve for x
x = 109,877,699,910,768,480/431,869,409.94 - Step 6: Final answer
x = 254,423,437.69
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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.