Finding the Fourth Proportional to 868,759,631.20, 1,303,139,446.80 and 460,612,943.20
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Solution
The fourth proportional to 868,759,631.20, 1,303,139,446.80 and 460,612,943.20 is: 690,919,414.80
Step by Step Solution
- Step 1: Write the proportion equation
868,759,631.20 : 1,303,139,446.80 = 460,612,943.20 : x - Step 2: Convert to fraction form
868,759,631.20/1,303,139,446.80 = 460,612,943.20/x - Step 3: Cross multiply
868,759,631.20x = 1,303,139,446.80 × 460,612,943.20 - Step 4: Simplify right side
868,759,631.20x = 600,242,895,990,567,808 - Step 5: Solve for x
x = 600,242,895,990,567,808/868,759,631.20 - Step 6: Final answer
x = 690,919,414.80
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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.