Finding the Fourth Proportional to 509,580,495.80, 764,370,743.70 and 169,178,319.80
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Solution
The fourth proportional to 509,580,495.80, 764,370,743.70 and 169,178,319.80 is: 253,767,479.70
Step by Step Solution
- Step 1: Write the proportion equation
509,580,495.80 : 764,370,743.70 = 169,178,319.80 : x - Step 2: Convert to fraction form
509,580,495.80/764,370,743.70 = 169,178,319.80/x - Step 3: Cross multiply
509,580,495.80x = 764,370,743.70 × 169,178,319.80 - Step 4: Simplify right side
509,580,495.80x = 129,314,958,123,442,448 - Step 5: Solve for x
x = 129,314,958,123,442,448/509,580,495.80 - Step 6: Final answer
x = 253,767,479.70
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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.