Finding the Fourth Proportional to 84,081,029.70, 126,121,544.55 and 70,476,140.10
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Solution
The fourth proportional to 84,081,029.70, 126,121,544.55 and 70,476,140.10 is: 105,714,210.15
Step by Step Solution
- Step 1: Write the proportion equation
84,081,029.70 : 126,121,544.55 = 70,476,140.10 : x - Step 2: Convert to fraction form
84,081,029.70/126,121,544.55 = 70,476,140.10/x - Step 3: Cross multiply
84,081,029.70x = 126,121,544.55 × 70,476,140.10 - Step 4: Simplify right side
84,081,029.70x = 8,888,559,643,334,190 - Step 5: Solve for x
x = 8,888,559,643,334,190/84,081,029.70 - Step 6: Final answer
x = 105,714,210.15
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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.