Finding the Fourth Proportional to 166,085,445.80, 249,128,168.70 and 69,008,889.80
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Solution
The fourth proportional to 166,085,445.80, 249,128,168.70 and 69,008,889.80 is: 103,513,334.70
Step by Step Solution
- Step 1: Write the proportion equation
166,085,445.80 : 249,128,168.70 = 69,008,889.80 : x - Step 2: Convert to fraction form
166,085,445.80/249,128,168.70 = 69,008,889.80/x - Step 3: Cross multiply
166,085,445.80x = 249,128,168.70 × 69,008,889.80 - Step 4: Simplify right side
166,085,445.80x = 17,192,058,339,894,108 - Step 5: Solve for x
x = 17,192,058,339,894,108/166,085,445.80 - Step 6: Final answer
x = 103,513,334.70
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1.5x scale
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.