Finding the Fourth Proportional to 74,889,986.40, 112,334,979.60 and 62,124,904.80
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Solution
The fourth proportional to 74,889,986.40, 112,334,979.60 and 62,124,904.80 is: 93,187,357.20
Step by Step Solution
- Step 1: Write the proportion equation
74,889,986.40 : 112,334,979.60 = 62,124,904.80 : x - Step 2: Convert to fraction form
74,889,986.40/112,334,979.60 = 62,124,904.80/x - Step 3: Cross multiply
74,889,986.40x = 112,334,979.60 × 62,124,904.80 - Step 4: Simplify right side
74,889,986.40x = 6,978,799,913,359,941 - Step 5: Solve for x
x = 6,978,799,913,359,941/74,889,986.40 - Step 6: Final answer
x = 93,187,357.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.