Finding the Fourth Proportional to 737,428,085.80, 1,106,142,128.70 and 192,169,619.80
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Solution
The fourth proportional to 737,428,085.80, 1,106,142,128.70 and 192,169,619.80 is: 288,254,429.70
Step by Step Solution
- Step 1: Write the proportion equation
737,428,085.80 : 1,106,142,128.70 = 192,169,619.80 : x - Step 2: Convert to fraction form
737,428,085.80/1,106,142,128.70 = 192,169,619.80/x - Step 3: Cross multiply
737,428,085.80x = 1,106,142,128.70 × 192,169,619.80 - Step 4: Simplify right side
737,428,085.80x = 212,566,912,317,041,696 - Step 5: Solve for x
x = 212,566,912,317,041,696/737,428,085.80 - Step 6: Final answer
x = 288,254,429.70
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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.