Finding the Fourth Proportional to 118,591,724.67, 163,647,644.54 and 72,176,848.71
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Solution
The fourth proportional to 118,591,724.67, 163,647,644.54 and 72,176,848.71 is: 99,598,612.93
Step by Step Solution
- Step 1: Write the proportion equation
118,591,724.67 : 163,647,644.54 = 72,176,848.71 : x - Step 2: Convert to fraction form
118,591,724.67/163,647,644.54 = 72,176,848.71/x - Step 3: Cross multiply
118,591,724.67x = 163,647,644.54 × 72,176,848.71 - Step 4: Simplify right side
118,591,724.67x = 11,811,571,281,142,508 - Step 5: Solve for x
x = 11,811,571,281,142,508/118,591,724.67 - Step 6: Final answer
x = 99,598,612.93
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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.