Finding the Fourth Proportional to 122,788,959.08, 169,449,304.74 and 67,785,267.56
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Solution
The fourth proportional to 122,788,959.08, 169,449,304.74 and 67,785,267.56 is: 93,543,968.01
Step by Step Solution
- Step 1: Write the proportion equation
122,788,959.08 : 169,449,304.74 = 67,785,267.56 : x - Step 2: Convert to fraction form
122,788,959.08/169,449,304.74 = 67,785,267.56/x - Step 3: Cross multiply
122,788,959.08x = 169,449,304.74 × 67,785,267.56 - Step 4: Simplify right side
122,788,959.08x = 11,486,166,459,656,878 - Step 5: Solve for x
x = 11,486,166,459,656,878/122,788,959.08 - Step 6: Final answer
x = 93,543,968.01
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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.