Finding the Fourth Proportional to 107,117,984.92, 147,838,977.76 and 65,326,295.74
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Solution
The fourth proportional to 107,117,984.92, 147,838,977.76 and 65,326,295.74 is: 90,160,142.48
Step by Step Solution
- Step 1: Write the proportion equation
107,117,984.92 : 147,838,977.76 = 65,326,295.74 : x - Step 2: Convert to fraction form
107,117,984.92/147,838,977.76 = 65,326,295.74/x - Step 3: Cross multiply
107,117,984.92x = 147,838,977.76 × 65,326,295.74 - Step 4: Simplify right side
107,117,984.92x = 9,657,772,783,049,042 - Step 5: Solve for x
x = 9,657,772,783,049,042/107,117,984.92 - Step 6: Final answer
x = 90,160,142.48
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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.