Finding the Fourth Proportional to 2,390,156,403.19, 3,585,241,330.83 and 916,747,855.96
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Solution
The fourth proportional to 2,390,156,403.19, 3,585,241,330.83 and 916,747,855.96 is: 1,375,124,363.72
Step by Step Solution
- Step 1: Write the proportion equation
2,390,156,403.19 : 3,585,241,330.83 = 916,747,855.96 : x - Step 2: Convert to fraction form
2,390,156,403.19/3,585,241,330.83 = 916,747,855.96/x - Step 3: Cross multiply
2,390,156,403.19x = 3,585,241,330.83 × 916,747,855.96 - Step 4: Simplify right side
2,390,156,403.19x = 3,286,762,303,137,579,520 - Step 5: Solve for x
x = 3,286,762,303,137,579,520/2,390,156,403.19 - Step 6: Final answer
x = 1,375,124,363.72
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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.