Finding the Fourth Proportional to 1,203,391,486.17, 1,660,069,070.01 and 785,948,123.61
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Solution
The fourth proportional to 1,203,391,486.17, 1,660,069,070.01 and 785,948,123.61 is: 1,084,209,241.66
Step by Step Solution
- Step 1: Write the proportion equation
1,203,391,486.17 : 1,660,069,070.01 = 785,948,123.61 : x - Step 2: Convert to fraction form
1,203,391,486.17/1,660,069,070.01 = 785,948,123.61/x - Step 3: Cross multiply
1,203,391,486.17x = 1,660,069,070.01 × 785,948,123.61 - Step 4: Simplify right side
1,203,391,486.17x = 1,304,728,170,637,357,312 - Step 5: Solve for x
x = 1,304,728,170,637,357,312/1,203,391,486.17 - Step 6: Final answer
x = 1,084,209,241.66
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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.