Finding the Fourth Proportional to 51,990,420.84, 71,749,022.92 and 28,785,548.12
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Solution
The fourth proportional to 51,990,420.84, 71,749,022.92 and 28,785,548.12 is: 39,725,297.82
Step by Step Solution
- Step 1: Write the proportion equation
51,990,420.84 : 71,749,022.92 = 28,785,548.12 : x - Step 2: Convert to fraction form
51,990,420.84/71,749,022.92 = 28,785,548.12/x - Step 3: Cross multiply
51,990,420.84x = 71,749,022.92 × 28,785,548.12 - Step 4: Simplify right side
51,990,420.84x = 2,065,334,951,826,643 - Step 5: Solve for x
x = 2,065,334,951,826,643/51,990,420.84 - Step 6: Final answer
x = 39,725,297.82
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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.