Finding the Fourth Proportional to 129,418,905.80, 194,128,358.70 and 37,302,465.80
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Solution
The fourth proportional to 129,418,905.80, 194,128,358.70 and 37,302,465.80 is: 55,953,698.70
Step by Step Solution
- Step 1: Write the proportion equation
129,418,905.80 : 194,128,358.70 = 37,302,465.80 : x - Step 2: Convert to fraction form
129,418,905.80/194,128,358.70 = 37,302,465.80/x - Step 3: Cross multiply
129,418,905.80x = 194,128,358.70 × 37,302,465.80 - Step 4: Simplify right side
129,418,905.80x = 7,241,466,461,216,881 - Step 5: Solve for x
x = 7,241,466,461,216,881/129,418,905.80 - Step 6: Final answer
x = 55,953,698.70
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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.