Finding the Fourth Proportional to 118,474,572.54, 163,493,701.35 and 66,263,483.58
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Solution
The fourth proportional to 118,474,572.54, 163,493,701.35 and 66,263,483.58 is: 91,442,931.28
Step by Step Solution
- Step 1: Write the proportion equation
118,474,572.54 : 163,493,701.35 = 66,263,483.58 : x - Step 2: Convert to fraction form
118,474,572.54/163,493,701.35 = 66,263,483.58/x - Step 3: Cross multiply
118,474,572.54x = 163,493,701.35 × 66,263,483.58 - Step 4: Simplify right side
118,474,572.54x = 10,833,662,194,839,148 - Step 5: Solve for x
x = 10,833,662,194,839,148/118,474,572.54 - Step 6: Final answer
x = 91,442,931.28
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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.