Finding the Fourth Proportional to 828,972,459.20, 1,243,458,688.80 and 704,136,968.30
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Solution
The fourth proportional to 828,972,459.20, 1,243,458,688.80 and 704,136,968.30 is: 1,056,205,452.45
Step by Step Solution
- Step 1: Write the proportion equation
828,972,459.20 : 1,243,458,688.80 = 704,136,968.30 : x - Step 2: Convert to fraction form
828,972,459.20/1,243,458,688.80 = 704,136,968.30/x - Step 3: Cross multiply
828,972,459.20x = 1,243,458,688.80 × 704,136,968.30 - Step 4: Simplify right side
828,972,459.20x = 875,565,231,337,925,120 - Step 5: Solve for x
x = 875,565,231,337,925,120/828,972,459.20 - Step 6: Final answer
x = 1,056,205,452.45
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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.