Finding the Fourth Proportional to 1,240,272,021.80, 1,860,408,032.70 and 1,067,943,420.20
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Solution
The fourth proportional to 1,240,272,021.80, 1,860,408,032.70 and 1,067,943,420.20 is: 1,601,915,130.30
Step by Step Solution
- Step 1: Write the proportion equation
1,240,272,021.80 : 1,860,408,032.70 = 1,067,943,420.20 : x - Step 2: Convert to fraction form
1,240,272,021.80/1,860,408,032.70 = 1,067,943,420.20/x - Step 3: Cross multiply
1,240,272,021.80x = 1,860,408,032.70 × 1,067,943,420.20 - Step 4: Simplify right side
1,240,272,021.80x = 1,986,810,517,409,191,680 - Step 5: Solve for x
x = 1,986,810,517,409,191,680/1,240,272,021.80 - Step 6: Final answer
x = 1,601,915,130.30
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1.5x scale
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.