Finding the Fourth Proportional to 746,864,493.60, 1,120,296,740.40 and 725,341,133.10
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Solution
The fourth proportional to 746,864,493.60, 1,120,296,740.40 and 725,341,133.10 is: 1,088,011,699.65
Step by Step Solution
- Step 1: Write the proportion equation
746,864,493.60 : 1,120,296,740.40 = 725,341,133.10 : x - Step 2: Convert to fraction form
746,864,493.60/1,120,296,740.40 = 725,341,133.10/x - Step 3: Cross multiply
746,864,493.60x = 1,120,296,740.40 × 725,341,133.10 - Step 4: Simplify right side
746,864,493.60x = 812,597,307,089,972,608 - Step 5: Solve for x
x = 812,597,307,089,972,608/746,864,493.60 - Step 6: Final answer
x = 1,088,011,699.65
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Double scale
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Similar ratio
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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.