Finding the Fourth Proportional to 1,492,564,982.70, 2,238,847,474.05 and 1,320,378,098.70
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Solution
The fourth proportional to 1,492,564,982.70, 2,238,847,474.05 and 1,320,378,098.70 is: 1,980,567,148.05
Step by Step Solution
- Step 1: Write the proportion equation
1,492,564,982.70 : 2,238,847,474.05 = 1,320,378,098.70 : x - Step 2: Convert to fraction form
1,492,564,982.70/2,238,847,474.05 = 1,320,378,098.70/x - Step 3: Cross multiply
1,492,564,982.70x = 2,238,847,474.05 × 1,320,378,098.70 - Step 4: Simplify right side
1,492,564,982.70x = 2,956,125,171,065,437,184 - Step 5: Solve for x
x = 2,956,125,171,065,437,184/1,492,564,982.70 - Step 6: Final answer
x = 1,980,567,148.05
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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.