Finding the Fourth Proportional to 74,124,576.48, 110,679,869.40 and 66,398,342.88
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Solution
The fourth proportional to 74,124,576.48, 110,679,869.40 and 66,398,342.88 is: 99,143,364.69
Step by Step Solution
- Step 1: Write the proportion equation
74,124,576.48 : 110,679,869.40 = 66,398,342.88 : x - Step 2: Convert to fraction form
74,124,576.48/110,679,869.40 = 66,398,342.88/x - Step 3: Cross multiply
74,124,576.48x = 110,679,869.40 × 66,398,342.88 - Step 4: Simplify right side
74,124,576.48x = 7,348,959,918,334,821 - Step 5: Solve for x
x = 7,348,959,918,334,821/74,124,576.48 - Step 6: Final answer
x = 99,143,364.69
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.