Finding the Fourth Proportional to 910,816,466.49, 1,256,911,482.11 and 493,125,360.57
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Solution
The fourth proportional to 910,816,466.49, 1,256,911,482.11 and 493,125,360.57 is: 680,504,745.60
Step by Step Solution
- Step 1: Write the proportion equation
910,816,466.49 : 1,256,911,482.11 = 493,125,360.57 : x - Step 2: Convert to fraction form
910,816,466.49/1,256,911,482.11 = 493,125,360.57/x - Step 3: Cross multiply
910,816,466.49x = 1,256,911,482.11 × 493,125,360.57 - Step 4: Simplify right side
910,816,466.49x = 619,814,927,817,601,280 - Step 5: Solve for x
x = 619,814,927,817,601,280/910,816,466.49 - Step 6: Final answer
x = 680,504,745.60
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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.