Finding the Fourth Proportional to 64,378,314.44, 89,076,019.68 and 56,135,564.92
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Solution
The fourth proportional to 64,378,314.44, 89,076,019.68 and 56,135,564.92 is: 77,671,071.84
Step by Step Solution
- Step 1: Write the proportion equation
64,378,314.44 : 89,076,019.68 = 56,135,564.92 : x - Step 2: Convert to fraction form
64,378,314.44/89,076,019.68 = 56,135,564.92/x - Step 3: Cross multiply
64,378,314.44x = 89,076,019.68 × 56,135,564.92 - Step 4: Simplify right side
64,378,314.44x = 5,000,332,685,561,838 - Step 5: Solve for x
x = 5,000,332,685,561,838/64,378,314.44 - Step 6: Final answer
x = 77,671,071.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.