Finding the Fourth Proportional to 2,163,475,710.24, 2,985,664,063.68 and 1,223,659,961.92
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Solution
The fourth proportional to 2,163,475,710.24, 2,985,664,063.68 and 1,223,659,961.92 is: 1,688,688,972.65
Step by Step Solution
- Step 1: Write the proportion equation
2,163,475,710.24 : 2,985,664,063.68 = 1,223,659,961.92 : x - Step 2: Convert to fraction form
2,163,475,710.24/2,985,664,063.68 = 1,223,659,961.92/x - Step 3: Cross multiply
2,163,475,710.24x = 2,985,664,063.68 × 1,223,659,961.92 - Step 4: Simplify right side
2,163,475,710.24x = 3,653,437,574,468,581,376 - Step 5: Solve for x
x = 3,653,437,574,468,581,376/2,163,475,710.24 - Step 6: Final answer
x = 1,688,688,972.65
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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.