Finding the Fourth Proportional to 911,043,676.32, 1,257,241,485.79 and 493,356,681.96
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Solution
The fourth proportional to 911,043,676.32, 1,257,241,485.79 and 493,356,681.96 is: 680,832,877.69
Step by Step Solution
- Step 1: Write the proportion equation
911,043,676.32 : 1,257,241,485.79 = 493,356,681.96 : x - Step 2: Convert to fraction form
911,043,676.32/1,257,241,485.79 = 493,356,681.96/x - Step 3: Cross multiply
911,043,676.32x = 1,257,241,485.79 × 493,356,681.96 - Step 4: Simplify right side
911,043,676.32x = 620,268,487,851,814,784 - Step 5: Solve for x
x = 620,268,487,851,814,784/911,043,676.32 - Step 6: Final answer
x = 680,832,877.69
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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.