Finding the Fourth Proportional to 94,846,783.55, 130,816,345.73 and 81,638,440.79
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Solution
The fourth proportional to 94,846,783.55, 130,816,345.73 and 81,638,440.79 is: 112,598,889.45
Step by Step Solution
- Step 1: Write the proportion equation
94,846,783.55 : 130,816,345.73 = 81,638,440.79 : x - Step 2: Convert to fraction form
94,846,783.55/130,816,345.73 = 81,638,440.79/x - Step 3: Cross multiply
94,846,783.55x = 130,816,345.73 × 81,638,440.79 - Step 4: Simplify right side
94,846,783.55x = 10,679,642,495,773,912 - Step 5: Solve for x
x = 10,679,642,495,773,912/94,846,783.55 - Step 6: Final answer
x = 112,598,889.45
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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.