Finding the Fourth Proportional to 11,435,772.80, 15,781,881.12 and 6,851,995.68
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Solution
The fourth proportional to 11,435,772.80, 15,781,881.12 and 6,851,995.68 is: 9,456,062.41
Step by Step Solution
- Step 1: Write the proportion equation
11,435,772.80 : 15,781,881.12 = 6,851,995.68 : x - Step 2: Convert to fraction form
11,435,772.80/15,781,881.12 = 6,851,995.68/x - Step 3: Cross multiply
11,435,772.80x = 15,781,881.12 × 6,851,995.68 - Step 4: Simplify right side
11,435,772.80x = 108,137,381,256,513.55 - Step 5: Solve for x
x = 108,137,381,256,513.55/11,435,772.80 - Step 6: Final answer
x = 9,456,062.41
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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.