Finding the Fourth Proportional to 1,169,804,787.40, 1,754,282,028.30 and 393,475,774.60
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Solution
The fourth proportional to 1,169,804,787.40, 1,754,282,028.30 and 393,475,774.60 is: 590,070,657.42
Step by Step Solution
- Step 1: Write the proportion equation
1,169,804,787.40 : 1,754,282,028.30 = 393,475,774.60 : x - Step 2: Convert to fraction form
1,169,804,787.40/1,754,282,028.30 = 393,475,774.60/x - Step 3: Cross multiply
1,169,804,787.40x = 1,754,282,028.30 × 393,475,774.60 - Step 4: Simplify right side
1,169,804,787.40x = 690,267,479,952,201,600 - Step 5: Solve for x
x = 690,267,479,952,201,600/1,169,804,787.40 - Step 6: Final answer
x = 590,070,657.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.