Finding the Fourth Proportional to 146,643,909.30, 219,965,863.95 and 144,376,427.70
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Solution
The fourth proportional to 146,643,909.30, 219,965,863.95 and 144,376,427.70 is: 216,564,641.55
Step by Step Solution
- Step 1: Write the proportion equation
146,643,909.30 : 219,965,863.95 = 144,376,427.70 : x - Step 2: Convert to fraction form
146,643,909.30/219,965,863.95 = 144,376,427.70/x - Step 3: Cross multiply
146,643,909.30x = 219,965,863.95 × 144,376,427.70 - Step 4: Simplify right side
146,643,909.30x = 31,757,885,653,045,208 - Step 5: Solve for x
x = 31,757,885,653,045,208/146,643,909.30 - Step 6: Final answer
x = 216,564,641.55
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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.