Finding the Fourth Proportional to 215,742,381.84, 323,843,860.62 and 92,981,283.12
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Solution
The fourth proportional to 215,742,381.84, 323,843,860.62 and 92,981,283.12 is: 139,571,174.82
Step by Step Solution
- Step 1: Write the proportion equation
215,742,381.84 : 323,843,860.62 = 92,981,283.12 : x - Step 2: Convert to fraction form
215,742,381.84/323,843,860.62 = 92,981,283.12/x - Step 3: Cross multiply
215,742,381.84x = 323,843,860.62 × 92,981,283.12 - Step 4: Simplify right side
215,742,381.84x = 30,111,417,690,982,040 - Step 5: Solve for x
x = 30,111,417,690,982,040/215,742,381.84 - Step 6: Final answer
x = 139,571,174.82
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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.