Finding the Fourth Proportional to 1,082,648,907.35, 1,493,799,425.21 and 612,750,228.29
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Solution
The fourth proportional to 1,082,648,907.35, 1,493,799,425.21 and 612,750,228.29 is: 845,450,388.02
Step by Step Solution
- Step 1: Write the proportion equation
1,082,648,907.35 : 1,493,799,425.21 = 612,750,228.29 : x - Step 2: Convert to fraction form
1,082,648,907.35/1,493,799,425.21 = 612,750,228.29/x - Step 3: Cross multiply
1,082,648,907.35x = 1,493,799,425.21 × 612,750,228.29 - Step 4: Simplify right side
1,082,648,907.35x = 915,325,938,813,834,368 - Step 5: Solve for x
x = 915,325,938,813,834,368/1,082,648,907.35 - Step 6: Final answer
x = 845,450,388.02
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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.