Finding the Fourth Proportional to 911,043,684.36, 1,257,241,496.84 and 493,356,690
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Solution
The fourth proportional to 911,043,684.36, 1,257,241,496.84 and 493,356,690 is: 680,832,888.76
Step by Step Solution
- Step 1: Write the proportion equation
911,043,684.36 : 1,257,241,496.84 = 493,356,690 : x - Step 2: Convert to fraction form
911,043,684.36/1,257,241,496.84 = 493,356,690/x - Step 3: Cross multiply
911,043,684.36x = 1,257,241,496.84 × 493,356,690 - Step 4: Simplify right side
911,043,684.36x = 620,268,503,411,627,776 - Step 5: Solve for x
x = 620,268,503,411,627,776/911,043,684.36 - Step 6: Final answer
x = 680,832,888.76
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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.