Finding the Fourth Proportional to 117,617,437.76, 162,288,278.88 and 68,715,417.92
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Solution
The fourth proportional to 117,617,437.76, 162,288,278.88 and 68,715,417.92 is: 94,813,380.73
Step by Step Solution
- Step 1: Write the proportion equation
117,617,437.76 : 162,288,278.88 = 68,715,417.92 : x - Step 2: Convert to fraction form
117,617,437.76/162,288,278.88 = 68,715,417.92/x - Step 3: Cross multiply
117,617,437.76x = 162,288,278.88 × 68,715,417.92 - Step 4: Simplify right side
117,617,437.76x = 11,151,706,906,756,710 - Step 5: Solve for x
x = 11,151,706,906,756,710/117,617,437.76 - Step 6: Final answer
x = 94,813,380.73
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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.