Finding the Fourth Proportional to 177,780,639.15, 245,346,801.80 and 99,459,522.99
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Solution
The fourth proportional to 177,780,639.15, 245,346,801.80 and 99,459,522.99 is: 137,259,467.57
Step by Step Solution
- Step 1: Write the proportion equation
177,780,639.15 : 245,346,801.80 = 99,459,522.99 : x - Step 2: Convert to fraction form
177,780,639.15/245,346,801.80 = 99,459,522.99/x - Step 3: Cross multiply
177,780,639.15x = 245,346,801.80 × 99,459,522.99 - Step 4: Simplify right side
177,780,639.15x = 24,402,075,873,652,772 - Step 5: Solve for x
x = 24,402,075,873,652,772/177,780,639.15 - Step 6: Final answer
x = 137,259,467.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.