Finding the Fourth Proportional to 963,744,689.59, 1,330,374,488.75 and 650,902,645.06
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Solution
The fourth proportional to 963,744,689.59, 1,330,374,488.75 and 650,902,645.06 is: 898,520,410.02
Step by Step Solution
- Step 1: Write the proportion equation
963,744,689.59 : 1,330,374,488.75 = 650,902,645.06 : x - Step 2: Convert to fraction form
963,744,689.59/1,330,374,488.75 = 650,902,645.06/x - Step 3: Cross multiply
963,744,689.59x = 1,330,374,488.75 × 650,902,645.06 - Step 4: Simplify right side
963,744,689.59x = 865,944,273,647,720,192 - Step 5: Solve for x
x = 865,944,273,647,720,192/963,744,689.59 - Step 6: Final answer
x = 898,520,410.02
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Double scale
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1.5x scale
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.