Finding the Fourth Proportional to 124,416,429.20, 186,624,643.80 and 121,762,221.20
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Solution
The fourth proportional to 124,416,429.20, 186,624,643.80 and 121,762,221.20 is: 182,643,331.80
Step by Step Solution
- Step 1: Write the proportion equation
124,416,429.20 : 186,624,643.80 = 121,762,221.20 : x - Step 2: Convert to fraction form
124,416,429.20/186,624,643.80 = 121,762,221.20/x - Step 3: Cross multiply
124,416,429.20x = 186,624,643.80 × 121,762,221.20 - Step 4: Simplify right side
124,416,429.20x = 22,723,831,159,746,812 - Step 5: Solve for x
x = 22,723,831,159,746,812/124,416,429.20 - Step 6: Final answer
x = 182,643,331.80
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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.