Finding the Fourth Proportional to 147,585,424.70, 221,472,615.45 and 86,174,464.70
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Solution
The fourth proportional to 147,585,424.70, 221,472,615.45 and 86,174,464.70 is: 129,316,862.56
Step by Step Solution
- Step 1: Write the proportion equation
147,585,424.70 : 221,472,615.45 = 86,174,464.70 : x - Step 2: Convert to fraction form
147,585,424.70/221,472,615.45 = 86,174,464.70/x - Step 3: Cross multiply
147,585,424.70x = 221,472,615.45 × 86,174,464.70 - Step 4: Simplify right side
147,585,424.70x = 19,085,284,082,112,700 - Step 5: Solve for x
x = 19,085,284,082,112,700/147,585,424.70 - Step 6: Final answer
x = 129,316,862.56
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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.