Finding the Fourth Proportional to 624,279,811.80, 935,411,948.10 and 393,836,496.60
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Solution
The fourth proportional to 624,279,811.80, 935,411,948.10 and 393,836,496.60 is: 590,118,977.99
Step by Step Solution
- Step 1: Write the proportion equation
624,279,811.80 : 935,411,948.10 = 393,836,496.60 : x - Step 2: Convert to fraction form
624,279,811.80/935,411,948.10 = 393,836,496.60/x - Step 3: Cross multiply
624,279,811.80x = 935,411,948.10 × 393,836,496.60 - Step 4: Simplify right side
624,279,811.80x = 368,399,364,517,485,056 - Step 5: Solve for x
x = 368,399,364,517,485,056/624,279,811.80 - Step 6: Final answer
x = 590,118,977.99
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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.