Finding the Fourth Proportional to 1,416,210,405,068.90, 1,954,376,247,288.20 and 765,888,988,694.92
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Solution
The fourth proportional to 1,416,210,405,068.90, 1,954,376,247,288.20 and 765,888,988,694.92 is: 1,056,929,988,797.89
Step by Step Solution
- Step 1: Write the proportion equation
1,416,210,405,068.90 : 1,954,376,247,288.20 = 765,888,988,694.92 : x - Step 2: Convert to fraction form
1,416,210,405,068.90/1,954,376,247,288.20 = 765,888,988,694.92/x - Step 3: Cross multiply
1,416,210,405,068.90x = 1,954,376,247,288.20 × 765,888,988,694.92 - Step 4: Simplify right side
1,416,210,405,068.90x = 1,496,835,247,564,932,387,962,880 - Step 5: Solve for x
x = 1,496,835,247,564,932,387,962,880/1,416,210,405,068.90 - Step 6: Final answer
x = 1,056,929,988,797.89
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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.