Finding the Fourth Proportional to 1,330,687,455.30, 1,996,031,182.95 and 986,313,687.30
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Solution
The fourth proportional to 1,330,687,455.30, 1,996,031,182.95 and 986,313,687.30 is: 1,479,470,530.95
Step by Step Solution
- Step 1: Write the proportion equation
1,330,687,455.30 : 1,996,031,182.95 = 986,313,687.30 : x - Step 2: Convert to fraction form
1,330,687,455.30/1,996,031,182.95 = 986,313,687.30/x - Step 3: Cross multiply
1,330,687,455.30x = 1,996,031,182.95 × 986,313,687.30 - Step 4: Simplify right side
1,330,687,455.30x = 1,968,712,876,021,195,264 - Step 5: Solve for x
x = 1,968,712,876,021,195,264/1,330,687,455.30 - Step 6: Final answer
x = 1,479,470,530.95
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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.