Finding the Fourth Proportional to 156,975,907.23, 216,624,637.44 and 87,361,269.66
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Solution
The fourth proportional to 156,975,907.23, 216,624,637.44 and 87,361,269.66 is: 120,557,375.33
Step by Step Solution
- Step 1: Write the proportion equation
156,975,907.23 : 216,624,637.44 = 87,361,269.66 : x - Step 2: Convert to fraction form
156,975,907.23/216,624,637.44 = 87,361,269.66/x - Step 3: Cross multiply
156,975,907.23x = 216,624,637.44 × 87,361,269.66 - Step 4: Simplify right side
156,975,907.23x = 18,924,603,366,395,572 - Step 5: Solve for x
x = 18,924,603,366,395,572/156,975,907.23 - Step 6: Final answer
x = 120,557,375.33
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.