Finding the Fourth Proportional to 2,118,889,124.70, 3,178,333,687.05 and 1,659,220,215.90
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Solution
The fourth proportional to 2,118,889,124.70, 3,178,333,687.05 and 1,659,220,215.90 is: 2,488,830,323.85
Step by Step Solution
- Step 1: Write the proportion equation
2,118,889,124.70 : 3,178,333,687.05 = 1,659,220,215.90 : x - Step 2: Convert to fraction form
2,118,889,124.70/3,178,333,687.05 = 1,659,220,215.90/x - Step 3: Cross multiply
2,118,889,124.70x = 3,178,333,687.05 × 1,659,220,215.90 - Step 4: Simplify right side
2,118,889,124.70x = 5,273,555,506,429,344,768 - Step 5: Solve for x
x = 5,273,555,506,429,344,768/2,118,889,124.70 - Step 6: Final answer
x = 2,488,830,323.85
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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.