Finding the Fourth Proportional to 1,368,411,026,700.30, 1,888,409,086,874.20 and 742,691,804,117.65
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Solution
The fourth proportional to 1,368,411,026,700.30, 1,888,409,086,874.20 and 742,691,804,117.65 is: 1,024,915,704,621.79
Step by Step Solution
- Step 1: Write the proportion equation
1,368,411,026,700.30 : 1,888,409,086,874.20 = 742,691,804,117.65 : x - Step 2: Convert to fraction form
1,368,411,026,700.30/1,888,409,086,874.20 = 742,691,804,117.65/x - Step 3: Cross multiply
1,368,411,026,700.30x = 1,888,409,086,874.20 × 742,691,804,117.65 - Step 4: Simplify right side
1,368,411,026,700.30x = 1,402,505,951,642,763,701,256,192 - Step 5: Solve for x
x = 1,402,505,951,642,763,701,256,192/1,368,411,026,700.30 - Step 6: Final answer
x = 1,024,915,704,621.79
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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.