Finding the Fourth Proportional to 758,294,652.90, 1,137,441,979.35 and 672,201,210.90
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Solution
The fourth proportional to 758,294,652.90, 1,137,441,979.35 and 672,201,210.90 is: 1,008,301,816.35
Step by Step Solution
- Step 1: Write the proportion equation
758,294,652.90 : 1,137,441,979.35 = 672,201,210.90 : x - Step 2: Convert to fraction form
758,294,652.90/1,137,441,979.35 = 672,201,210.90/x - Step 3: Cross multiply
758,294,652.90x = 1,137,441,979.35 × 672,201,210.90 - Step 4: Simplify right side
758,294,652.90x = 764,589,875,847,562,752 - Step 5: Solve for x
x = 764,589,875,847,562,752/758,294,652.90 - Step 6: Final answer
x = 1,008,301,816.35
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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.