Finding the Fourth Proportional to 147,020,869.80, 220,531,304.70 and 141,048,901.80
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Solution
The fourth proportional to 147,020,869.80, 220,531,304.70 and 141,048,901.80 is: 211,573,352.70
Step by Step Solution
- Step 1: Write the proportion equation
147,020,869.80 : 220,531,304.70 = 141,048,901.80 : x - Step 2: Convert to fraction form
147,020,869.80/220,531,304.70 = 141,048,901.80/x - Step 3: Cross multiply
147,020,869.80x = 220,531,304.70 × 141,048,901.80 - Step 4: Simplify right side
147,020,869.80x = 31,105,698,340,456,180 - Step 5: Solve for x
x = 31,105,698,340,456,180/147,020,869.80 - Step 6: Final answer
x = 211,573,352.70
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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.