Finding the Fourth Proportional to 987,875,606.28, 1,363,270,285.32 and 541,842,600.12
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Solution
The fourth proportional to 987,875,606.28, 1,363,270,285.32 and 541,842,600.12 is: 747,743,856.99
Step by Step Solution
- Step 1: Write the proportion equation
987,875,606.28 : 1,363,270,285.32 = 541,842,600.12 : x - Step 2: Convert to fraction form
987,875,606.28/1,363,270,285.32 = 541,842,600.12/x - Step 3: Cross multiply
987,875,606.28x = 1,363,270,285.32 × 541,842,600.12 - Step 4: Simplify right side
987,875,606.28x = 738,677,916,064,123,008 - Step 5: Solve for x
x = 738,677,916,064,123,008/987,875,606.28 - Step 6: Final answer
x = 747,743,856.99
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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.