Finding the Fourth Proportional to 752,970,942.19, 1,039,125,133.73 and 418,457,563.79
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Solution
The fourth proportional to 752,970,942.19, 1,039,125,133.73 and 418,457,563.79 is: 577,485,461.35
Step by Step Solution
- Step 1: Write the proportion equation
752,970,942.19 : 1,039,125,133.73 = 418,457,563.79 : x - Step 2: Convert to fraction form
752,970,942.19/1,039,125,133.73 = 418,457,563.79/x - Step 3: Cross multiply
752,970,942.19x = 1,039,125,133.73 × 418,457,563.79 - Step 4: Simplify right side
752,970,942.19x = 434,829,771,931,521,472 - Step 5: Solve for x
x = 434,829,771,931,521,472/752,970,942.19 - Step 6: Final answer
x = 577,485,461.35
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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.