Finding the Fourth Proportional to 1,368,411,026,643.10, 1,888,409,086,795.30 and 742,691,804,060.30
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Solution
The fourth proportional to 1,368,411,026,643.10, 1,888,409,086,795.30 and 742,691,804,060.30 is: 1,024,915,704,542.67
Step by Step Solution
- Step 1: Write the proportion equation
1,368,411,026,643.10 : 1,888,409,086,795.30 = 742,691,804,060.30 : x - Step 2: Convert to fraction form
1,368,411,026,643.10/1,888,409,086,795.30 = 742,691,804,060.30/x - Step 3: Cross multiply
1,368,411,026,643.10x = 1,888,409,086,795.30 × 742,691,804,060.30 - Step 4: Simplify right side
1,368,411,026,643.10x = 1,402,505,951,475,865,030,230,016 - Step 5: Solve for x
x = 1,402,505,951,475,865,030,230,016/1,368,411,026,643.10 - Step 6: Final answer
x = 1,024,915,704,542.67
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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.