Finding the Fourth Proportional to 913,876,000.40, 1,370,814,000.60 and 874,069,101.20
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Solution
The fourth proportional to 913,876,000.40, 1,370,814,000.60 and 874,069,101.20 is: 1,311,103,651.80
Step by Step Solution
- Step 1: Write the proportion equation
913,876,000.40 : 1,370,814,000.60 = 874,069,101.20 : x - Step 2: Convert to fraction form
913,876,000.40/1,370,814,000.60 = 874,069,101.20/x - Step 3: Cross multiply
913,876,000.40x = 1,370,814,000.60 × 874,069,101.20 - Step 4: Simplify right side
913,876,000.40x = 1,198,186,161,416,818,176 - Step 5: Solve for x
x = 1,198,186,161,416,818,176/913,876,000.40 - Step 6: Final answer
x = 1,311,103,651.80
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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.