Finding the Fourth Proportional to 8,658,052,078.60, 12,987,078,117.90 and 7,418,306,513.80
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Solution
The fourth proportional to 8,658,052,078.60, 12,987,078,117.90 and 7,418,306,513.80 is: 11,127,459,770.70
Step by Step Solution
- Step 1: Write the proportion equation
8,658,052,078.60 : 12,987,078,117.90 = 7,418,306,513.80 : x - Step 2: Convert to fraction form
8,658,052,078.60/12,987,078,117.90 = 7,418,306,513.80/x - Step 3: Cross multiply
8,658,052,078.60x = 12,987,078,117.90 × 7,418,306,513.80 - Step 4: Simplify right side
8,658,052,078.60x = 96,342,126,197,247,016,960 - Step 5: Solve for x
x = 96,342,126,197,247,016,960/8,658,052,078.60 - Step 6: Final answer
x = 11,127,459,770.70
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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.