Finding the Fourth Proportional to 1,197,678,211.20, 1,793,829,931.20 and 982,687,363.20
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Solution
The fourth proportional to 1,197,678,211.20, 1,793,829,931.20 and 982,687,363.20 is: 1,471,826,061.99
Step by Step Solution
- Step 1: Write the proportion equation
1,197,678,211.20 : 1,793,829,931.20 = 982,687,363.20 : x - Step 2: Convert to fraction form
1,197,678,211.20/1,793,829,931.20 = 982,687,363.20/x - Step 3: Cross multiply
1,197,678,211.20x = 1,793,829,931.20 × 982,687,363.20 - Step 4: Simplify right side
1,197,678,211.20x = 1,762,774,005,120,165,632 - Step 5: Solve for x
x = 1,762,774,005,120,165,632/1,197,678,211.20 - Step 6: Final answer
x = 1,471,826,061.99
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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.