Finding the Fourth Proportional to 809,775,834.26, 1,117,490,378.94 and 438,497,865.63
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Solution
The fourth proportional to 809,775,834.26, 1,117,490,378.94 and 438,497,865.63 is: 605,126,907.10
Step by Step Solution
- Step 1: Write the proportion equation
809,775,834.26 : 1,117,490,378.94 = 438,497,865.63 : x - Step 2: Convert to fraction form
809,775,834.26/1,117,490,378.94 = 438,497,865.63/x - Step 3: Cross multiply
809,775,834.26x = 1,117,490,378.94 × 438,497,865.63 - Step 4: Simplify right side
809,775,834.26x = 490,017,146,027,249,920 - Step 5: Solve for x
x = 490,017,146,027,249,920/809,775,834.26 - Step 6: Final answer
x = 605,126,907.10
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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.