Finding the Fourth Proportional to 1,240,483,514.20, 1,711,878,730.26 and 683,586,490.84
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Solution
The fourth proportional to 1,240,483,514.20, 1,711,878,730.26 and 683,586,490.84 is: 943,355,683.95
Step by Step Solution
- Step 1: Write the proportion equation
1,240,483,514.20 : 1,711,878,730.26 = 683,586,490.84 : x - Step 2: Convert to fraction form
1,240,483,514.20/1,711,878,730.26 = 683,586,490.84/x - Step 3: Cross multiply
1,240,483,514.20x = 1,711,878,730.26 × 683,586,490.84 - Step 4: Simplify right side
1,240,483,514.20x = 1,170,217,173,962,068,480 - Step 5: Solve for x
x = 1,170,217,173,962,068,480/1,240,483,514.20 - Step 6: Final answer
x = 943,355,683.95
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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.