Finding the Fourth Proportional to 1,301,963,891.88, 1,796,497,187.57 and 766,566,738.08
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Solution
The fourth proportional to 1,301,963,891.88, 1,796,497,187.57 and 766,566,738.08 is: 1,057,736,698.86
Step by Step Solution
- Step 1: Write the proportion equation
1,301,963,891.88 : 1,796,497,187.57 = 766,566,738.08 : x - Step 2: Convert to fraction form
1,301,963,891.88/1,796,497,187.57 = 766,566,738.08/x - Step 3: Cross multiply
1,301,963,891.88x = 1,796,497,187.57 × 766,566,738.08 - Step 4: Simplify right side
1,301,963,891.88x = 1,377,134,989,032,613,632 - Step 5: Solve for x
x = 1,377,134,989,032,613,632/1,301,963,891.88 - Step 6: Final answer
x = 1,057,736,698.86
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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.