Finding the Fourth Proportional to 1,203,391,656.80, 1,660,069,305.41 and 785,948,294.24
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Solution
The fourth proportional to 1,203,391,656.80, 1,660,069,305.41 and 785,948,294.24 is: 1,084,209,477.05
Step by Step Solution
- Step 1: Write the proportion equation
1,203,391,656.80 : 1,660,069,305.41 = 785,948,294.24 : x - Step 2: Convert to fraction form
1,203,391,656.80/1,660,069,305.41 = 785,948,294.24/x - Step 3: Cross multiply
1,203,391,656.80x = 1,660,069,305.41 × 785,948,294.24 - Step 4: Simplify right side
1,203,391,656.80x = 1,304,728,638,894,940,928 - Step 5: Solve for x
x = 1,304,728,638,894,940,928/1,203,391,656.80 - Step 6: Final answer
x = 1,084,209,477.05
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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.