Finding the Fourth Proportional to 809,665,159.68, 1,214,572,400.64 and 264,409,551.36
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Solution
The fourth proportional to 809,665,159.68, 1,214,572,400.64 and 264,409,551.36 is: 396,638,708.86
Step by Step Solution
- Step 1: Write the proportion equation
809,665,159.68 : 1,214,572,400.64 = 264,409,551.36 : x - Step 2: Convert to fraction form
809,665,159.68/1,214,572,400.64 = 264,409,551.36/x - Step 3: Cross multiply
809,665,159.68x = 1,214,572,400.64 × 264,409,551.36 - Step 4: Simplify right side
809,665,159.68x = 321,144,543,547,460,608 - Step 5: Solve for x
x = 321,144,543,547,460,608/809,665,159.68 - Step 6: Final answer
x = 396,638,708.86
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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.