Finding the Fourth Proportional to 104,979,384.90, 157,469,077.35 and 66,432,197.70
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Solution
The fourth proportional to 104,979,384.90, 157,469,077.35 and 66,432,197.70 is: 99,648,296.55
Step by Step Solution
- Step 1: Write the proportion equation
104,979,384.90 : 157,469,077.35 = 66,432,197.70 : x - Step 2: Convert to fraction form
104,979,384.90/157,469,077.35 = 66,432,197.70/x - Step 3: Cross multiply
104,979,384.90x = 157,469,077.35 × 66,432,197.70 - Step 4: Simplify right side
104,979,384.90x = 10,461,016,878,151,792 - Step 5: Solve for x
x = 10,461,016,878,151,792/104,979,384.90 - Step 6: Final answer
x = 99,648,296.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.