Finding the Fourth Proportional to 98,127,459.59, 135,416,789.81 and 54,076,038.99
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Solution
The fourth proportional to 98,127,459.59, 135,416,789.81 and 54,076,038.99 is: 74,625,427.34
Step by Step Solution
- Step 1: Write the proportion equation
98,127,459.59 : 135,416,789.81 = 54,076,038.99 : x - Step 2: Convert to fraction form
98,127,459.59/135,416,789.81 = 54,076,038.99/x - Step 3: Cross multiply
98,127,459.59x = 135,416,789.81 × 54,076,038.99 - Step 4: Simplify right side
98,127,459.59x = 7,322,803,605,801,385 - Step 5: Solve for x
x = 7,322,803,605,801,385/98,127,459.59 - Step 6: Final answer
x = 74,625,427.34
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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.