Finding the Fourth Proportional to 146,794,437.21, 220,046,211.51 and 68,931,959.70
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Solution
The fourth proportional to 146,794,437.21, 220,046,211.51 and 68,931,959.70 is: 103,329,641.59
Step by Step Solution
- Step 1: Write the proportion equation
146,794,437.21 : 220,046,211.51 = 68,931,959.70 : x - Step 2: Convert to fraction form
146,794,437.21/220,046,211.51 = 68,931,959.70/x - Step 3: Cross multiply
146,794,437.21x = 220,046,211.51 × 68,931,959.70 - Step 4: Simplify right side
146,794,437.21x = 15,168,216,583,944,996 - Step 5: Solve for x
x = 15,168,216,583,944,996/146,794,437.21 - Step 6: Final answer
x = 103,329,641.59
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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.