Finding the Fourth Proportional to 247,083,032.40, 340,832,920.68 and 154,102,114.32
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Solution
The fourth proportional to 247,083,032.40, 340,832,920.68 and 154,102,114.32 is: 212,572,563.95
Step by Step Solution
- Step 1: Write the proportion equation
247,083,032.40 : 340,832,920.68 = 154,102,114.32 : x - Step 2: Convert to fraction form
247,083,032.40/340,832,920.68 = 154,102,114.32/x - Step 3: Cross multiply
247,083,032.40x = 340,832,920.68 × 154,102,114.32 - Step 4: Simplify right side
247,083,032.40x = 52,523,073,706,648,848 - Step 5: Solve for x
x = 52,523,073,706,648,848/247,083,032.40 - Step 6: Final answer
x = 212,572,563.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.