Finding the Fourth Proportional to 147,586,312.70, 221,473,947.45 and 86,175,352.70
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Solution
The fourth proportional to 147,586,312.70, 221,473,947.45 and 86,175,352.70 is: 129,318,194.80
Step by Step Solution
- Step 1: Write the proportion equation
147,586,312.70 : 221,473,947.45 = 86,175,352.70 : x - Step 2: Convert to fraction form
147,586,312.70/221,473,947.45 = 86,175,352.70/x - Step 3: Cross multiply
147,586,312.70x = 221,473,947.45 × 86,175,352.70 - Step 4: Simplify right side
147,586,312.70x = 19,085,595,535,365,016 - Step 5: Solve for x
x = 19,085,595,535,365,016/147,586,312.70 - Step 6: Final answer
x = 129,318,194.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.