Finding the Fourth Proportional to 1,400,535,687.84, 1,932,745,252.68 and 765,468,970.80
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Solution
The fourth proportional to 1,400,535,687.84, 1,932,745,252.68 and 765,468,970.80 is: 1,056,350,460.92
Step by Step Solution
- Step 1: Write the proportion equation
1,400,535,687.84 : 1,932,745,252.68 = 765,468,970.80 : x - Step 2: Convert to fraction form
1,400,535,687.84/1,932,745,252.68 = 765,468,970.80/x - Step 3: Cross multiply
1,400,535,687.84x = 1,932,745,252.68 × 765,468,970.80 - Step 4: Simplify right side
1,400,535,687.84x = 1,479,456,519,387,545,600 - Step 5: Solve for x
x = 1,479,456,519,387,545,600/1,400,535,687.84 - Step 6: Final answer
x = 1,056,350,460.92
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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.